Home / 81,414.74-112,350.67-45,115.88

Finding the Fourth Proportional to 81,414.74, 112,350.67 and 45,115.88

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Solution

The fourth proportional to 81,414.74, 112,350.67 and 45,115.88 is: 62,258.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,414.74 : 112,350.67 = 45,115.88 : x
  2. Step 2: Convert to fraction form
    81,414.74/112,350.67 = 45,115.88/x
  3. Step 3: Cross multiply
    81,414.74x = 112,350.67 × 45,115.88
  4. Step 4: Simplify right side
    81,414.74x = 5,068,799,345.64
  5. Step 5: Solve for x
    x = 5,068,799,345.64/81,414.74
  6. Step 6: Final answer
    x = 62,258.99

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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.