Home / 78,545.28-117,849.60-36,995.52

Finding the Fourth Proportional to 78,545.28, 117,849.60 and 36,995.52

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Solution

The fourth proportional to 78,545.28, 117,849.60 and 36,995.52 is: 55,508.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,545.28 : 117,849.60 = 36,995.52 : x
  2. Step 2: Convert to fraction form
    78,545.28/117,849.60 = 36,995.52/x
  3. Step 3: Cross multiply
    78,545.28x = 117,849.60 × 36,995.52
  4. Step 4: Simplify right side
    78,545.28x = 4,359,907,233.79
  5. Step 5: Solve for x
    x = 4,359,907,233.79/78,545.28
  6. Step 6: Final answer
    x = 55,508.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.