Home / 48,135.17-72,172.69-18,517.73

Finding the Fourth Proportional to 48,135.17, 72,172.69 and 18,517.73

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Solution

The fourth proportional to 48,135.17, 72,172.69 and 18,517.73 is: 27,765.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,135.17 : 72,172.69 = 18,517.73 : x
  2. Step 2: Convert to fraction form
    48,135.17/72,172.69 = 18,517.73/x
  3. Step 3: Cross multiply
    48,135.17x = 72,172.69 × 18,517.73
  4. Step 4: Simplify right side
    48,135.17x = 1,336,473,979.64
  5. Step 5: Solve for x
    x = 1,336,473,979.64/48,135.17
  6. Step 6: Final answer
    x = 27,765.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.