Home / 83,737.20-115,540.92-49,756.08

Finding the Fourth Proportional to 83,737.20, 115,540.92 and 49,756.08

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Solution

The fourth proportional to 83,737.20, 115,540.92 and 49,756.08 is: 68,653.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,737.20 : 115,540.92 = 49,756.08 : x
  2. Step 2: Convert to fraction form
    83,737.20/115,540.92 = 49,756.08/x
  3. Step 3: Cross multiply
    83,737.20x = 115,540.92 × 49,756.08
  4. Step 4: Simplify right side
    83,737.20x = 5,748,863,258.79
  5. Step 5: Solve for x
    x = 5,748,863,258.79/83,737.20
  6. Step 6: Final answer
    x = 68,653.64

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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.