Home / 84,647.20-126,929.76-25,471.84

Finding the Fourth Proportional to 84,647.20, 126,929.76 and 25,471.84

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Solution

The fourth proportional to 84,647.20, 126,929.76 and 25,471.84 is: 38,195.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,647.20 : 126,929.76 = 25,471.84 : x
  2. Step 2: Convert to fraction form
    84,647.20/126,929.76 = 25,471.84/x
  3. Step 3: Cross multiply
    84,647.20x = 126,929.76 × 25,471.84
  4. Step 4: Simplify right side
    84,647.20x = 3,233,134,537.96
  5. Step 5: Solve for x
    x = 3,233,134,537.96/84,647.20
  6. Step 6: Final answer
    x = 38,195.41

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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.