Home / 85,146.26-127,719.40-25,982.24

Finding the Fourth Proportional to 85,146.26, 127,719.40 and 25,982.24

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Solution

The fourth proportional to 85,146.26, 127,719.40 and 25,982.24 is: 38,973.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,146.26 : 127,719.40 = 25,982.24 : x
  2. Step 2: Convert to fraction form
    85,146.26/127,719.40 = 25,982.24/x
  3. Step 3: Cross multiply
    85,146.26x = 127,719.40 × 25,982.24
  4. Step 4: Simplify right side
    85,146.26x = 3,318,436,103.46
  5. Step 5: Solve for x
    x = 3,318,436,103.46/85,146.26
  6. Step 6: Final answer
    x = 38,973.36

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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.