Home / 87,539.13-131,308.70-21,875.13

Finding the Fourth Proportional to 87,539.13, 131,308.70 and 21,875.13

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Solution

The fourth proportional to 87,539.13, 131,308.70 and 21,875.13 is: 32,812.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,539.13 : 131,308.70 = 21,875.13 : x
  2. Step 2: Convert to fraction form
    87,539.13/131,308.70 = 21,875.13/x
  3. Step 3: Cross multiply
    87,539.13x = 131,308.70 × 21,875.13
  4. Step 4: Simplify right side
    87,539.13x = 2,872,394,882.63
  5. Step 5: Solve for x
    x = 2,872,394,882.63/87,539.13
  6. Step 6: Final answer
    x = 32,812.70

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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.