Home / 87,618.18-120,922.61-53,649.57

Finding the Fourth Proportional to 87,618.18, 120,922.61 and 53,649.57

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Solution

The fourth proportional to 87,618.18, 120,922.61 and 53,649.57 is: 74,042.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,618.18 : 120,922.61 = 53,649.57 : x
  2. Step 2: Convert to fraction form
    87,618.18/120,922.61 = 53,649.57/x
  3. Step 3: Cross multiply
    87,618.18x = 120,922.61 × 53,649.57
  4. Step 4: Simplify right side
    87,618.18x = 6,487,445,761.53
  5. Step 5: Solve for x
    x = 6,487,445,761.53/87,618.18
  6. Step 6: Final answer
    x = 74,042.23

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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.