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Finding the Fourth Proportional to 72,697.50, 100,324.17 and 44,418.78

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Solution

The fourth proportional to 72,697.50, 100,324.17 and 44,418.78 is: 61,298.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,697.50 : 100,324.17 = 44,418.78 : x
  2. Step 2: Convert to fraction form
    72,697.50/100,324.17 = 44,418.78/x
  3. Step 3: Cross multiply
    72,697.50x = 100,324.17 × 44,418.78
  4. Step 4: Simplify right side
    72,697.50x = 4,456,277,235.91
  5. Step 5: Solve for x
    x = 4,456,277,235.91/72,697.50
  6. Step 6: Final answer
    x = 61,298.91

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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.