Home / 89,425.20-123,404.40-49,138.88

Finding the Fourth Proportional to 89,425.20, 123,404.40 and 49,138.88

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Solution

The fourth proportional to 89,425.20, 123,404.40 and 49,138.88 is: 67,810.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,425.20 : 123,404.40 = 49,138.88 : x
  2. Step 2: Convert to fraction form
    89,425.20/123,404.40 = 49,138.88/x
  3. Step 3: Cross multiply
    89,425.20x = 123,404.40 × 49,138.88
  4. Step 4: Simplify right side
    89,425.20x = 6,063,954,003.07
  5. Step 5: Solve for x
    x = 6,063,954,003.07/89,425.20
  6. Step 6: Final answer
    x = 67,810.35

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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.