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Finding the Fourth Proportional to 48,370.33, 72,583.51 and 20,287.88

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Solution

The fourth proportional to 48,370.33, 72,583.51 and 20,287.88 is: 30,443.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,370.33 : 72,583.51 = 20,287.88 : x
  2. Step 2: Convert to fraction form
    48,370.33/72,583.51 = 20,287.88/x
  3. Step 3: Cross multiply
    48,370.33x = 72,583.51 × 20,287.88
  4. Step 4: Simplify right side
    48,370.33x = 1,472,565,540.86
  5. Step 5: Solve for x
    x = 1,472,565,540.86/48,370.33
  6. Step 6: Final answer
    x = 30,443.57

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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.