Home / 85,040.52-127,517.03-38,267.88

Finding the Fourth Proportional to 85,040.52, 127,517.03 and 38,267.88

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Solution

The fourth proportional to 85,040.52, 127,517.03 and 38,267.88 is: 57,382.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,040.52 : 127,517.03 = 38,267.88 : x
  2. Step 2: Convert to fraction form
    85,040.52/127,517.03 = 38,267.88/x
  3. Step 3: Cross multiply
    85,040.52x = 127,517.03 × 38,267.88
  4. Step 4: Simplify right side
    85,040.52x = 4,879,806,402.00
  5. Step 5: Solve for x
    x = 4,879,806,402.00/85,040.52
  6. Step 6: Final answer
    x = 57,382.13

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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.