Home / 86,159.10-129,238.56-26,999.37

Finding the Fourth Proportional to 86,159.10, 129,238.56 and 26,999.37

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Solution

The fourth proportional to 86,159.10, 129,238.56 and 26,999.37 is: 40,499.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,159.10 : 129,238.56 = 26,999.37 : x
  2. Step 2: Convert to fraction form
    86,159.10/129,238.56 = 26,999.37/x
  3. Step 3: Cross multiply
    86,159.10x = 129,238.56 × 26,999.37
  4. Step 4: Simplify right side
    86,159.10x = 3,489,359,699.71
  5. Step 5: Solve for x
    x = 3,489,359,699.71/86,159.10
  6. Step 6: Final answer
    x = 40,499.03

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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.