Home / 84,929.70-127,394.85-25,765.86

Finding the Fourth Proportional to 84,929.70, 127,394.85 and 25,765.86

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Solution

The fourth proportional to 84,929.70, 127,394.85 and 25,765.86 is: 38,648.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,929.70 : 127,394.85 = 25,765.86 : x
  2. Step 2: Convert to fraction form
    84,929.70/127,394.85 = 25,765.86/x
  3. Step 3: Cross multiply
    84,929.70x = 127,394.85 × 25,765.86
  4. Step 4: Simplify right side
    84,929.70x = 3,282,437,869.82
  5. Step 5: Solve for x
    x = 3,282,437,869.82/84,929.70
  6. Step 6: Final answer
    x = 38,648.88

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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.