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Finding the Fourth Proportional to 86,162.56, 129,243.86 and 26,998.22

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Solution

The fourth proportional to 86,162.56, 129,243.86 and 26,998.22 is: 40,497.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,162.56 : 129,243.86 = 26,998.22 : x
  2. Step 2: Convert to fraction form
    86,162.56/129,243.86 = 26,998.22/x
  3. Step 3: Cross multiply
    86,162.56x = 129,243.86 × 26,998.22
  4. Step 4: Simplify right side
    86,162.56x = 3,489,354,165.93
  5. Step 5: Solve for x
    x = 3,489,354,165.93/86,162.56
  6. Step 6: Final answer
    x = 40,497.34

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.