Home / 84,539.61-126,805.06-28,380.15

Finding the Fourth Proportional to 84,539.61, 126,805.06 and 28,380.15

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Solution

The fourth proportional to 84,539.61, 126,805.06 and 28,380.15 is: 42,568.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,539.61 : 126,805.06 = 28,380.15 : x
  2. Step 2: Convert to fraction form
    84,539.61/126,805.06 = 28,380.15/x
  3. Step 3: Cross multiply
    84,539.61x = 126,805.06 × 28,380.15
  4. Step 4: Simplify right side
    84,539.61x = 3,598,746,623.56
  5. Step 5: Solve for x
    x = 3,598,746,623.56/84,539.61
  6. Step 6: Final answer
    x = 42,568.76

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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.