Home / 95,121.33-142,688.15-31,938.90

Finding the Fourth Proportional to 95,121.33, 142,688.15 and 31,938.90

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Solution

The fourth proportional to 95,121.33, 142,688.15 and 31,938.90 is: 47,910.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,121.33 : 142,688.15 = 31,938.90 : x
  2. Step 2: Convert to fraction form
    95,121.33/142,688.15 = 31,938.90/x
  3. Step 3: Cross multiply
    95,121.33x = 142,688.15 × 31,938.90
  4. Step 4: Simplify right side
    95,121.33x = 4,557,302,554.04
  5. Step 5: Solve for x
    x = 4,557,302,554.04/95,121.33
  6. Step 6: Final answer
    x = 47,910.42

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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.