Home / 85,077.18-127,634.22-25,911.30

Finding the Fourth Proportional to 85,077.18, 127,634.22 and 25,911.30

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Solution

The fourth proportional to 85,077.18, 127,634.22 and 25,911.30 is: 38,872.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,077.18 : 127,634.22 = 25,911.30 : x
  2. Step 2: Convert to fraction form
    85,077.18/127,634.22 = 25,911.30/x
  3. Step 3: Cross multiply
    85,077.18x = 127,634.22 × 25,911.30
  4. Step 4: Simplify right side
    85,077.18x = 3,307,168,564.69
  5. Step 5: Solve for x
    x = 3,307,168,564.69/85,077.18
  6. Step 6: Final answer
    x = 38,872.57

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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.