Home / 71,179.38-98,219.03-39,343.95

Finding the Fourth Proportional to 71,179.38, 98,219.03 and 39,343.95

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Solution

The fourth proportional to 71,179.38, 98,219.03 and 39,343.95 is: 54,289.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,179.38 : 98,219.03 = 39,343.95 : x
  2. Step 2: Convert to fraction form
    71,179.38/98,219.03 = 39,343.95/x
  3. Step 3: Cross multiply
    71,179.38x = 98,219.03 × 39,343.95
  4. Step 4: Simplify right side
    71,179.38x = 3,864,323,917.55
  5. Step 5: Solve for x
    x = 3,864,323,917.55/71,179.38
  6. Step 6: Final answer
    x = 54,289.94

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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.