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Finding the Fourth Proportional to 86,469.26, 129,707.86 and 26,493.44

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Solution

The fourth proportional to 86,469.26, 129,707.86 and 26,493.44 is: 39,741.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,469.26 : 129,707.86 = 26,493.44 : x
  2. Step 2: Convert to fraction form
    86,469.26/129,707.86 = 26,493.44/x
  3. Step 3: Cross multiply
    86,469.26x = 129,707.86 × 26,493.44
  4. Step 4: Simplify right side
    86,469.26x = 3,436,406,691.67
  5. Step 5: Solve for x
    x = 3,436,406,691.67/86,469.26
  6. Step 6: Final answer
    x = 39,741.37

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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.