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Finding the Fourth Proportional to 87,332.70, 130,999.05 and 60,606.30

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Solution

The fourth proportional to 87,332.70, 130,999.05 and 60,606.30 is: 90,909.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,332.70 : 130,999.05 = 60,606.30 : x
  2. Step 2: Convert to fraction form
    87,332.70/130,999.05 = 60,606.30/x
  3. Step 3: Cross multiply
    87,332.70x = 130,999.05 × 60,606.30
  4. Step 4: Simplify right side
    87,332.70x = 7,939,367,724.02
  5. Step 5: Solve for x
    x = 7,939,367,724.02/87,332.70
  6. Step 6: Final answer
    x = 90,909.45

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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.