Home / 78,899.73-108,876.81-43,082.46

Finding the Fourth Proportional to 78,899.73, 108,876.81 and 43,082.46

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Solution

The fourth proportional to 78,899.73, 108,876.81 and 43,082.46 is: 59,451.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,899.73 : 108,876.81 = 43,082.46 : x
  2. Step 2: Convert to fraction form
    78,899.73/108,876.81 = 43,082.46/x
  3. Step 3: Cross multiply
    78,899.73x = 108,876.81 × 43,082.46
  4. Step 4: Simplify right side
    78,899.73x = 4,690,680,811.75
  5. Step 5: Solve for x
    x = 4,690,680,811.75/78,899.73
  6. Step 6: Final answer
    x = 59,451.16

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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.