Home / 87,660.80-131,491.20-59,667.20

Finding the Fourth Proportional to 87,660.80, 131,491.20 and 59,667.20

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Solution

The fourth proportional to 87,660.80, 131,491.20 and 59,667.20 is: 89,500.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,660.80 : 131,491.20 = 59,667.20 : x
  2. Step 2: Convert to fraction form
    87,660.80/131,491.20 = 59,667.20/x
  3. Step 3: Cross multiply
    87,660.80x = 131,491.20 × 59,667.20
  4. Step 4: Simplify right side
    87,660.80x = 7,845,711,728.64
  5. Step 5: Solve for x
    x = 7,845,711,728.64/87,660.80
  6. Step 6: Final answer
    x = 89,500.80

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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.