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Finding the Fourth Proportional to 73,640.28, 101,620.84 and 45,007.88

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Solution

The fourth proportional to 73,640.28, 101,620.84 and 45,007.88 is: 62,109.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,640.28 : 101,620.84 = 45,007.88 : x
  2. Step 2: Convert to fraction form
    73,640.28/101,620.84 = 45,007.88/x
  3. Step 3: Cross multiply
    73,640.28x = 101,620.84 × 45,007.88
  4. Step 4: Simplify right side
    73,640.28x = 4,573,738,572.22
  5. Step 5: Solve for x
    x = 4,573,738,572.22/73,640.28
  6. Step 6: Final answer
    x = 62,109.20

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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.