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Finding the Fourth Proportional to 48,870, 67,440.67 and 27,648.81

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Solution

The fourth proportional to 48,870, 67,440.67 and 27,648.81 is: 38,155.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,870 : 67,440.67 = 27,648.81 : x
  2. Step 2: Convert to fraction form
    48,870/67,440.67 = 27,648.81/x
  3. Step 3: Cross multiply
    48,870x = 67,440.67 × 27,648.81
  4. Step 4: Simplify right side
    48,870x = 1,864,654,201.98
  5. Step 5: Solve for x
    x = 1,864,654,201.98/48,870
  6. Step 6: Final answer
    x = 38,155.40

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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.