Home / 99,891.09-137,849.93-54,569.97

Finding the Fourth Proportional to 99,891.09, 137,849.93 and 54,569.97

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Solution

The fourth proportional to 99,891.09, 137,849.93 and 54,569.97 is: 75,306.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,891.09 : 137,849.93 = 54,569.97 : x
  2. Step 2: Convert to fraction form
    99,891.09/137,849.93 = 54,569.97/x
  3. Step 3: Cross multiply
    99,891.09x = 137,849.93 × 54,569.97
  4. Step 4: Simplify right side
    99,891.09x = 7,522,466,271.75
  5. Step 5: Solve for x
    x = 7,522,466,271.75/99,891.09
  6. Step 6: Final answer
    x = 75,306.68

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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.