Home / 87,461.90-130,890.45-52,426.70

Finding the Fourth Proportional to 87,461.90, 130,890.45 and 52,426.70

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Solution

The fourth proportional to 87,461.90, 130,890.45 and 52,426.70 is: 78,458.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,461.90 : 130,890.45 = 52,426.70 : x
  2. Step 2: Convert to fraction form
    87,461.90/130,890.45 = 52,426.70/x
  3. Step 3: Cross multiply
    87,461.90x = 130,890.45 × 52,426.70
  4. Step 4: Simplify right side
    87,461.90x = 6,862,154,355.02
  5. Step 5: Solve for x
    x = 6,862,154,355.02/87,461.90
  6. Step 6: Final answer
    x = 78,458.78

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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.