Home / 99,995.31-137,995.52-54,676.11

Finding the Fourth Proportional to 99,995.31, 137,995.52 and 54,676.11

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Solution

The fourth proportional to 99,995.31, 137,995.52 and 54,676.11 is: 75,454.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,995.31 : 137,995.52 = 54,676.11 : x
  2. Step 2: Convert to fraction form
    99,995.31/137,995.52 = 54,676.11/x
  3. Step 3: Cross multiply
    99,995.31x = 137,995.52 × 54,676.11
  4. Step 4: Simplify right side
    99,995.31x = 7,545,057,957.65
  5. Step 5: Solve for x
    x = 7,545,057,957.65/99,995.31
  6. Step 6: Final answer
    x = 75,454.12

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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.