Home / 99,449.30-137,240.03-54,127.61

Finding the Fourth Proportional to 99,449.30, 137,240.03 and 54,127.61

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Solution

The fourth proportional to 99,449.30, 137,240.03 and 54,127.61 is: 74,696.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,449.30 : 137,240.03 = 54,127.61 : x
  2. Step 2: Convert to fraction form
    99,449.30/137,240.03 = 54,127.61/x
  3. Step 3: Cross multiply
    99,449.30x = 137,240.03 × 54,127.61
  4. Step 4: Simplify right side
    99,449.30x = 7,428,473,863.39
  5. Step 5: Solve for x
    x = 7,428,473,863.39/99,449.30
  6. Step 6: Final answer
    x = 74,696.09

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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.