Home / 87,460.20-131,322.30-69,877.80

Finding the Fourth Proportional to 87,460.20, 131,322.30 and 69,877.80

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Solution

The fourth proportional to 87,460.20, 131,322.30 and 69,877.80 is: 104,922.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,460.20 : 131,322.30 = 69,877.80 : x
  2. Step 2: Convert to fraction form
    87,460.20/131,322.30 = 69,877.80/x
  3. Step 3: Cross multiply
    87,460.20x = 131,322.30 × 69,877.80
  4. Step 4: Simplify right side
    87,460.20x = 9,176,513,414.94
  5. Step 5: Solve for x
    x = 9,176,513,414.94/87,460.20
  6. Step 6: Final answer
    x = 104,922.16

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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.