Home / 87,602.92-131,416.26-28,419.28

Finding the Fourth Proportional to 87,602.92, 131,416.26 and 28,419.28

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Solution

The fourth proportional to 87,602.92, 131,416.26 and 28,419.28 is: 42,632.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,602.92 : 131,416.26 = 28,419.28 : x
  2. Step 2: Convert to fraction form
    87,602.92/131,416.26 = 28,419.28/x
  3. Step 3: Cross multiply
    87,602.92x = 131,416.26 × 28,419.28
  4. Step 4: Simplify right side
    87,602.92x = 3,734,755,489.49
  5. Step 5: Solve for x
    x = 3,734,755,489.49/87,602.92
  6. Step 6: Final answer
    x = 42,632.77

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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.