Home / 85,247.44-127,887.56-38,500.31

Finding the Fourth Proportional to 85,247.44, 127,887.56 and 38,500.31

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Solution

The fourth proportional to 85,247.44, 127,887.56 and 38,500.31 is: 57,757.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,247.44 : 127,887.56 = 38,500.31 : x
  2. Step 2: Convert to fraction form
    85,247.44/127,887.56 = 38,500.31/x
  3. Step 3: Cross multiply
    85,247.44x = 127,887.56 × 38,500.31
  4. Step 4: Simplify right side
    85,247.44x = 4,923,710,976.74
  5. Step 5: Solve for x
    x = 4,923,710,976.74/85,247.44
  6. Step 6: Final answer
    x = 57,757.88

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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.