Home / 48,515.20-72,772.80-13,454.86

Finding the Fourth Proportional to 48,515.20, 72,772.80 and 13,454.86

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Solution

The fourth proportional to 48,515.20, 72,772.80 and 13,454.86 is: 20,182.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,515.20 : 72,772.80 = 13,454.86 : x
  2. Step 2: Convert to fraction form
    48,515.20/72,772.80 = 13,454.86/x
  3. Step 3: Cross multiply
    48,515.20x = 72,772.80 × 13,454.86
  4. Step 4: Simplify right side
    48,515.20x = 979,147,853.39
  5. Step 5: Solve for x
    x = 979,147,853.39/48,515.20
  6. Step 6: Final answer
    x = 20,182.29

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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.