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Finding the Fourth Proportional to 54,878.52, 75,732.88 and 29,728.56

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Solution

The fourth proportional to 54,878.52, 75,732.88 and 29,728.56 is: 41,025.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,878.52 : 75,732.88 = 29,728.56 : x
  2. Step 2: Convert to fraction form
    54,878.52/75,732.88 = 29,728.56/x
  3. Step 3: Cross multiply
    54,878.52x = 75,732.88 × 29,728.56
  4. Step 4: Simplify right side
    54,878.52x = 2,251,429,467.05
  5. Step 5: Solve for x
    x = 2,251,429,467.05/54,878.52
  6. Step 6: Final answer
    x = 41,025.70

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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.