Home / 99,386.49-137,155.86-54,067.02

Finding the Fourth Proportional to 99,386.49, 137,155.86 and 54,067.02

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Solution

The fourth proportional to 99,386.49, 137,155.86 and 54,067.02 is: 74,613.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,386.49 : 137,155.86 = 54,067.02 : x
  2. Step 2: Convert to fraction form
    99,386.49/137,155.86 = 54,067.02/x
  3. Step 3: Cross multiply
    99,386.49x = 137,155.86 × 54,067.02
  4. Step 4: Simplify right side
    99,386.49x = 7,415,608,625.74
  5. Step 5: Solve for x
    x = 7,415,608,625.74/99,386.49
  6. Step 6: Final answer
    x = 74,613.85

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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.