Home / 48,540.56-72,839.13-20,458.87

Finding the Fourth Proportional to 48,540.56, 72,839.13 and 20,458.87

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Solution

The fourth proportional to 48,540.56, 72,839.13 and 20,458.87 is: 30,700.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,540.56 : 72,839.13 = 20,458.87 : x
  2. Step 2: Convert to fraction form
    48,540.56/72,839.13 = 20,458.87/x
  3. Step 3: Cross multiply
    48,540.56x = 72,839.13 × 20,458.87
  4. Step 4: Simplify right side
    48,540.56x = 1,490,205,927.39
  5. Step 5: Solve for x
    x = 1,490,205,927.39/48,540.56
  6. Step 6: Final answer
    x = 30,700.22

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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.