Home / 87,740.31-121,071.38-49,500.46

Finding the Fourth Proportional to 87,740.31, 121,071.38 and 49,500.46

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Solution

The fourth proportional to 87,740.31, 121,071.38 and 49,500.46 is: 68,304.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,740.31 : 121,071.38 = 49,500.46 : x
  2. Step 2: Convert to fraction form
    87,740.31/121,071.38 = 49,500.46/x
  3. Step 3: Cross multiply
    87,740.31x = 121,071.38 × 49,500.46
  4. Step 4: Simplify right side
    87,740.31x = 5,993,088,452.65
  5. Step 5: Solve for x
    x = 5,993,088,452.65/87,740.31
  6. Step 6: Final answer
    x = 68,304.85

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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.