Home / 91,306.92-136,982.16-28,977.48

Finding the Fourth Proportional to 91,306.92, 136,982.16 and 28,977.48

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Solution

The fourth proportional to 91,306.92, 136,982.16 and 28,977.48 is: 43,473.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,306.92 : 136,982.16 = 28,977.48 : x
  2. Step 2: Convert to fraction form
    91,306.92/136,982.16 = 28,977.48/x
  3. Step 3: Cross multiply
    91,306.92x = 136,982.16 × 28,977.48
  4. Step 4: Simplify right side
    91,306.92x = 3,969,397,801.76
  5. Step 5: Solve for x
    x = 3,969,397,801.76/91,306.92
  6. Step 6: Final answer
    x = 43,473.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.