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Finding the Fourth Proportional to 72,472.93, 108,502.03 and 49,057.45

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Solution

The fourth proportional to 72,472.93, 108,502.03 and 49,057.45 is: 73,445.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,472.93 : 108,502.03 = 49,057.45 : x
  2. Step 2: Convert to fraction form
    72,472.93/108,502.03 = 49,057.45/x
  3. Step 3: Cross multiply
    72,472.93x = 108,502.03 × 49,057.45
  4. Step 4: Simplify right side
    72,472.93x = 5,322,832,911.62
  5. Step 5: Solve for x
    x = 5,322,832,911.62/72,472.93
  6. Step 6: Final answer
    x = 73,445.81

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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.