Home / 83,731.23-115,469.92-55,000.19

Finding the Fourth Proportional to 83,731.23, 115,469.92 and 55,000.19

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Solution

The fourth proportional to 83,731.23, 115,469.92 and 55,000.19 is: 75,848.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,731.23 : 115,469.92 = 55,000.19 : x
  2. Step 2: Convert to fraction form
    83,731.23/115,469.92 = 55,000.19/x
  3. Step 3: Cross multiply
    83,731.23x = 115,469.92 × 55,000.19
  4. Step 4: Simplify right side
    83,731.23x = 6,350,867,896.71
  5. Step 5: Solve for x
    x = 6,350,867,896.71/83,731.23
  6. Step 6: Final answer
    x = 75,848.26

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1.5x scale

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.