Home / 87,539.47-131,309.21-69,926.83

Finding the Fourth Proportional to 87,539.47, 131,309.21 and 69,926.83

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Solution

The fourth proportional to 87,539.47, 131,309.21 and 69,926.83 is: 104,890.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,539.47 : 131,309.21 = 69,926.83 : x
  2. Step 2: Convert to fraction form
    87,539.47/131,309.21 = 69,926.83/x
  3. Step 3: Cross multiply
    87,539.47x = 131,309.21 × 69,926.83
  4. Step 4: Simplify right side
    87,539.47x = 9,182,036,805.10
  5. Step 5: Solve for x
    x = 9,182,036,805.10/87,539.47
  6. Step 6: Final answer
    x = 104,890.25

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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.