Home / 90,042.82-124,257.38-49,755.72

Finding the Fourth Proportional to 90,042.82, 124,257.38 and 49,755.72

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Solution

The fourth proportional to 90,042.82, 124,257.38 and 49,755.72 is: 68,661.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,042.82 : 124,257.38 = 49,755.72 : x
  2. Step 2: Convert to fraction form
    90,042.82/124,257.38 = 49,755.72/x
  3. Step 3: Cross multiply
    90,042.82x = 124,257.38 × 49,755.72
  4. Step 4: Simplify right side
    90,042.82x = 6,182,515,407.21
  5. Step 5: Solve for x
    x = 6,182,515,407.21/90,042.82
  6. Step 6: Final answer
    x = 68,661.95

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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.