Home / 72,544.38-100,085.31-45,688.56

Finding the Fourth Proportional to 72,544.38, 100,085.31 and 45,688.56

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Solution

The fourth proportional to 72,544.38, 100,085.31 and 45,688.56 is: 63,033.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,544.38 : 100,085.31 = 45,688.56 : x
  2. Step 2: Convert to fraction form
    72,544.38/100,085.31 = 45,688.56/x
  3. Step 3: Cross multiply
    72,544.38x = 100,085.31 × 45,688.56
  4. Step 4: Simplify right side
    72,544.38x = 4,572,753,691.05
  5. Step 5: Solve for x
    x = 4,572,753,691.05/72,544.38
  6. Step 6: Final answer
    x = 63,033.88

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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.