Home / 90,543.78-124,937.10-50,257.85

Finding the Fourth Proportional to 90,543.78, 124,937.10 and 50,257.85

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Solution

The fourth proportional to 90,543.78, 124,937.10 and 50,257.85 is: 69,348.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,543.78 : 124,937.10 = 50,257.85 : x
  2. Step 2: Convert to fraction form
    90,543.78/124,937.10 = 50,257.85/x
  3. Step 3: Cross multiply
    90,543.78x = 124,937.10 × 50,257.85
  4. Step 4: Simplify right side
    90,543.78x = 6,279,069,406.55
  5. Step 5: Solve for x
    x = 6,279,069,406.55/90,543.78
  6. Step 6: Final answer
    x = 69,348.43

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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.