Home / 97,961.30-146,955.78-31,385.85

Finding the Fourth Proportional to 97,961.30, 146,955.78 and 31,385.85

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Solution

The fourth proportional to 97,961.30, 146,955.78 and 31,385.85 is: 47,083.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,961.30 : 146,955.78 = 31,385.85 : x
  2. Step 2: Convert to fraction form
    97,961.30/146,955.78 = 31,385.85/x
  3. Step 3: Cross multiply
    97,961.30x = 146,955.78 × 31,385.85
  4. Step 4: Simplify right side
    97,961.30x = 4,612,332,067.71
  5. Step 5: Solve for x
    x = 4,612,332,067.71/97,961.30
  6. Step 6: Final answer
    x = 47,083.21

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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.