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Finding the Fourth Proportional to 60,520.80, 90,781.20 and 56,584.20

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Solution

The fourth proportional to 60,520.80, 90,781.20 and 56,584.20 is: 84,876.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,520.80 : 90,781.20 = 56,584.20 : x
  2. Step 2: Convert to fraction form
    60,520.80/90,781.20 = 56,584.20/x
  3. Step 3: Cross multiply
    60,520.80x = 90,781.20 × 56,584.20
  4. Step 4: Simplify right side
    60,520.80x = 5,136,781,577.04
  5. Step 5: Solve for x
    x = 5,136,781,577.04/60,520.80
  6. Step 6: Final answer
    x = 84,876.30

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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.