Home / 87,160.40-130,438.20-52,125.20

Finding the Fourth Proportional to 87,160.40, 130,438.20 and 52,125.20

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Solution

The fourth proportional to 87,160.40, 130,438.20 and 52,125.20 is: 78,006.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,160.40 : 130,438.20 = 52,125.20 : x
  2. Step 2: Convert to fraction form
    87,160.40/130,438.20 = 52,125.20/x
  3. Step 3: Cross multiply
    87,160.40x = 130,438.20 × 52,125.20
  4. Step 4: Simplify right side
    87,160.40x = 6,799,117,262.64
  5. Step 5: Solve for x
    x = 6,799,117,262.64/87,160.40
  6. Step 6: Final answer
    x = 78,006.95

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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.