Home / 87,660.40-131,490.60-59,666.80

Finding the Fourth Proportional to 87,660.40, 131,490.60 and 59,666.80

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Solution

The fourth proportional to 87,660.40, 131,490.60 and 59,666.80 is: 89,500.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,660.40 : 131,490.60 = 59,666.80 : x
  2. Step 2: Convert to fraction form
    87,660.40/131,490.60 = 59,666.80/x
  3. Step 3: Cross multiply
    87,660.40x = 131,490.60 × 59,666.80
  4. Step 4: Simplify right side
    87,660.40x = 7,845,623,332.08
  5. Step 5: Solve for x
    x = 7,845,623,332.08/87,660.40
  6. Step 6: Final answer
    x = 89,500.20

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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.