Home / 78,711.14-108,621.42-44,719.69

Finding the Fourth Proportional to 78,711.14, 108,621.42 and 44,719.69

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Solution

The fourth proportional to 78,711.14, 108,621.42 and 44,719.69 is: 61,713.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,711.14 : 108,621.42 = 44,719.69 : x
  2. Step 2: Convert to fraction form
    78,711.14/108,621.42 = 44,719.69/x
  3. Step 3: Cross multiply
    78,711.14x = 108,621.42 × 44,719.69
  4. Step 4: Simplify right side
    78,711.14x = 4,857,516,229.76
  5. Step 5: Solve for x
    x = 4,857,516,229.76/78,711.14
  6. Step 6: Final answer
    x = 61,713.20

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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.