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Finding the Fourth Proportional to 48,327, 66,691.38 and 28,197.72

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Solution

The fourth proportional to 48,327, 66,691.38 and 28,197.72 is: 38,912.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,327 : 66,691.38 = 28,197.72 : x
  2. Step 2: Convert to fraction form
    48,327/66,691.38 = 28,197.72/x
  3. Step 3: Cross multiply
    48,327x = 66,691.38 × 28,197.72
  4. Step 4: Simplify right side
    48,327x = 1,880,544,859.65
  5. Step 5: Solve for x
    x = 1,880,544,859.65/48,327
  6. Step 6: Final answer
    x = 38,912.92

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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.