Home / 85,277.06-127,915.92-38,475.26

Finding the Fourth Proportional to 85,277.06, 127,915.92 and 38,475.26

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Solution

The fourth proportional to 85,277.06, 127,915.92 and 38,475.26 is: 57,713.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,277.06 : 127,915.92 = 38,475.26 : x
  2. Step 2: Convert to fraction form
    85,277.06/127,915.92 = 38,475.26/x
  3. Step 3: Cross multiply
    85,277.06x = 127,915.92 × 38,475.26
  4. Step 4: Simplify right side
    85,277.06x = 4,921,597,640.56
  5. Step 5: Solve for x
    x = 4,921,597,640.56/85,277.06
  6. Step 6: Final answer
    x = 57,713.03

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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.