Home / 87,543.18-120,821.09-49,310.24

Finding the Fourth Proportional to 87,543.18, 120,821.09 and 49,310.24

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Solution

The fourth proportional to 87,543.18, 120,821.09 and 49,310.24 is: 68,054.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,543.18 : 120,821.09 = 49,310.24 : x
  2. Step 2: Convert to fraction form
    87,543.18/120,821.09 = 49,310.24/x
  3. Step 3: Cross multiply
    87,543.18x = 120,821.09 × 49,310.24
  4. Step 4: Simplify right side
    87,543.18x = 5,957,716,094.30
  5. Step 5: Solve for x
    x = 5,957,716,094.30/87,543.18
  6. Step 6: Final answer
    x = 68,054.60

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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.