Home / 99,629.40-137,484.42-54,306.39

Finding the Fourth Proportional to 99,629.40, 137,484.42 and 54,306.39

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Solution

The fourth proportional to 99,629.40, 137,484.42 and 54,306.39 is: 74,940.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,629.40 : 137,484.42 = 54,306.39 : x
  2. Step 2: Convert to fraction form
    99,629.40/137,484.42 = 54,306.39/x
  3. Step 3: Cross multiply
    99,629.40x = 137,484.42 × 54,306.39
  4. Step 4: Simplify right side
    99,629.40x = 7,466,282,531.44
  5. Step 5: Solve for x
    x = 7,466,282,531.44/99,629.40
  6. Step 6: Final answer
    x = 74,940.56

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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.