Home / 85,147.67-127,721.13-25,983.14

Finding the Fourth Proportional to 85,147.67, 127,721.13 and 25,983.14

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Solution

The fourth proportional to 85,147.67, 127,721.13 and 25,983.14 is: 38,974.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,147.67 : 127,721.13 = 25,983.14 : x
  2. Step 2: Convert to fraction form
    85,147.67/127,721.13 = 25,983.14/x
  3. Step 3: Cross multiply
    85,147.67x = 127,721.13 × 25,983.14
  4. Step 4: Simplify right side
    85,147.67x = 3,318,595,363.14
  5. Step 5: Solve for x
    x = 3,318,595,363.14/85,147.67
  6. Step 6: Final answer
    x = 38,974.59

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1.5x scale

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.