Home / 87,520.50-120,800.16-49,816.62

Finding the Fourth Proportional to 87,520.50, 120,800.16 and 49,816.62

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Solution

The fourth proportional to 87,520.50, 120,800.16 and 49,816.62 is: 68,759.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,520.50 : 120,800.16 = 49,816.62 : x
  2. Step 2: Convert to fraction form
    87,520.50/120,800.16 = 49,816.62/x
  3. Step 3: Cross multiply
    87,520.50x = 120,800.16 × 49,816.62
  4. Step 4: Simplify right side
    87,520.50x = 6,017,855,666.66
  5. Step 5: Solve for x
    x = 6,017,855,666.66/87,520.50
  6. Step 6: Final answer
    x = 68,759.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.