Home / 87,000.50-120,070.32-48,766.28

Finding the Fourth Proportional to 87,000.50, 120,070.32 and 48,766.28

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Solution

The fourth proportional to 87,000.50, 120,070.32 and 48,766.28 is: 67,302.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,000.50 : 120,070.32 = 48,766.28 : x
  2. Step 2: Convert to fraction form
    87,000.50/120,070.32 = 48,766.28/x
  3. Step 3: Cross multiply
    87,000.50x = 120,070.32 × 48,766.28
  4. Step 4: Simplify right side
    87,000.50x = 5,855,382,061.58
  5. Step 5: Solve for x
    x = 5,855,382,061.58/87,000.50
  6. Step 6: Final answer
    x = 67,302.85

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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.