Home / 78,869.43-108,823.18-50,178.73

Finding the Fourth Proportional to 78,869.43, 108,823.18 and 50,178.73

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Solution

The fourth proportional to 78,869.43, 108,823.18 and 50,178.73 is: 69,236.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,869.43 : 108,823.18 = 50,178.73 : x
  2. Step 2: Convert to fraction form
    78,869.43/108,823.18 = 50,178.73/x
  3. Step 3: Cross multiply
    78,869.43x = 108,823.18 × 50,178.73
  4. Step 4: Simplify right side
    78,869.43x = 5,460,608,966.96
  5. Step 5: Solve for x
    x = 5,460,608,966.96/78,869.43
  6. Step 6: Final answer
    x = 69,236.06

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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.