Home / 48,481.92-72,714.65-13,413.38

Finding the Fourth Proportional to 48,481.92, 72,714.65 and 13,413.38

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Solution

The fourth proportional to 48,481.92, 72,714.65 and 13,413.38 is: 20,117.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,481.92 : 72,714.65 = 13,413.38 : x
  2. Step 2: Convert to fraction form
    48,481.92/72,714.65 = 13,413.38/x
  3. Step 3: Cross multiply
    48,481.92x = 72,714.65 × 13,413.38
  4. Step 4: Simplify right side
    48,481.92x = 975,348,801.38
  5. Step 5: Solve for x
    x = 975,348,801.38/48,481.92
  6. Step 6: Final answer
    x = 20,117.78

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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.