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Finding the Fourth Proportional to 50,418, 69,576.84 and 28,061.52

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Solution

The fourth proportional to 50,418, 69,576.84 and 28,061.52 is: 38,724.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,418 : 69,576.84 = 28,061.52 : x
  2. Step 2: Convert to fraction form
    50,418/69,576.84 = 28,061.52/x
  3. Step 3: Cross multiply
    50,418x = 69,576.84 × 28,061.52
  4. Step 4: Simplify right side
    50,418x = 1,952,431,887.20
  5. Step 5: Solve for x
    x = 1,952,431,887.20/50,418
  6. Step 6: Final answer
    x = 38,724.90

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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.