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Finding the Fourth Proportional to 73,472.90, 101,393.61 and 39,939.62

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Solution

The fourth proportional to 73,472.90, 101,393.61 and 39,939.62 is: 55,117.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,472.90 : 101,393.61 = 39,939.62 : x
  2. Step 2: Convert to fraction form
    73,472.90/101,393.61 = 39,939.62/x
  3. Step 3: Cross multiply
    73,472.90x = 101,393.61 × 39,939.62
  4. Step 4: Simplify right side
    73,472.90x = 4,049,622,253.83
  5. Step 5: Solve for x
    x = 4,049,622,253.83/73,472.90
  6. Step 6: Final answer
    x = 55,117.22

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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.