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Finding the Fourth Proportional to 72,768, 100,424.52 and 44,107.44

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Solution

The fourth proportional to 72,768, 100,424.52 and 44,107.44 is: 60,871.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,768 : 100,424.52 = 44,107.44 : x
  2. Step 2: Convert to fraction form
    72,768/100,424.52 = 44,107.44/x
  3. Step 3: Cross multiply
    72,768x = 100,424.52 × 44,107.44
  4. Step 4: Simplify right side
    72,768x = 4,429,468,490.43
  5. Step 5: Solve for x
    x = 4,429,468,490.43/72,768
  6. Step 6: Final answer
    x = 60,871.10

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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.