Home / 99,734.91-137,631.18-54,413.79

Finding the Fourth Proportional to 99,734.91, 137,631.18 and 54,413.79

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Solution

The fourth proportional to 99,734.91, 137,631.18 and 54,413.79 is: 75,089.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,734.91 : 137,631.18 = 54,413.79 : x
  2. Step 2: Convert to fraction form
    99,734.91/137,631.18 = 54,413.79/x
  3. Step 3: Cross multiply
    99,734.91x = 137,631.18 × 54,413.79
  4. Step 4: Simplify right side
    99,734.91x = 7,489,034,125.97
  5. Step 5: Solve for x
    x = 7,489,034,125.97/99,734.91
  6. Step 6: Final answer
    x = 75,089.40

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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.