Home / 84,928.20-127,359.90-25,744.20

Finding the Fourth Proportional to 84,928.20, 127,359.90 and 25,744.20

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Solution

The fourth proportional to 84,928.20, 127,359.90 and 25,744.20 is: 38,606.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,928.20 : 127,359.90 = 25,744.20 : x
  2. Step 2: Convert to fraction form
    84,928.20/127,359.90 = 25,744.20/x
  3. Step 3: Cross multiply
    84,928.20x = 127,359.90 × 25,744.20
  4. Step 4: Simplify right side
    84,928.20x = 3,278,778,737.58
  5. Step 5: Solve for x
    x = 3,278,778,737.58/84,928.20
  6. Step 6: Final answer
    x = 38,606.48

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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.