Home / 83,815.43-115,502.88-69,496.05

Finding the Fourth Proportional to 83,815.43, 115,502.88 and 69,496.05

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Solution

The fourth proportional to 83,815.43, 115,502.88 and 69,496.05 is: 95,769.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,815.43 : 115,502.88 = 69,496.05 : x
  2. Step 2: Convert to fraction form
    83,815.43/115,502.88 = 69,496.05/x
  3. Step 3: Cross multiply
    83,815.43x = 115,502.88 × 69,496.05
  4. Step 4: Simplify right side
    83,815.43x = 8,026,993,923.62
  5. Step 5: Solve for x
    x = 8,026,993,923.62/83,815.43
  6. Step 6: Final answer
    x = 95,769.88

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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.