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Finding the Fourth Proportional to 73,287.30, 109,930.95 and 49,959.30

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Solution

The fourth proportional to 73,287.30, 109,930.95 and 49,959.30 is: 74,938.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,287.30 : 109,930.95 = 49,959.30 : x
  2. Step 2: Convert to fraction form
    73,287.30/109,930.95 = 49,959.30/x
  3. Step 3: Cross multiply
    73,287.30x = 109,930.95 × 49,959.30
  4. Step 4: Simplify right side
    73,287.30x = 5,492,073,310.34
  5. Step 5: Solve for x
    x = 5,492,073,310.34/73,287.30
  6. Step 6: Final answer
    x = 74,938.95

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Similar ratio
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1.5x scale

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.