Home / 83,455.32-125,181.82-20,275.88

Finding the Fourth Proportional to 83,455.32, 125,181.82 and 20,275.88

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Solution

The fourth proportional to 83,455.32, 125,181.82 and 20,275.88 is: 30,413.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,455.32 : 125,181.82 = 20,275.88 : x
  2. Step 2: Convert to fraction form
    83,455.32/125,181.82 = 20,275.88/x
  3. Step 3: Cross multiply
    83,455.32x = 125,181.82 × 20,275.88
  4. Step 4: Simplify right side
    83,455.32x = 2,538,171,560.50
  5. Step 5: Solve for x
    x = 2,538,171,560.50/83,455.32
  6. Step 6: Final answer
    x = 30,413.54

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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.