Home / 85,290.24-127,936.16-32,687.20

Finding the Fourth Proportional to 85,290.24, 127,936.16 and 32,687.20

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Solution

The fourth proportional to 85,290.24, 127,936.16 and 32,687.20 is: 49,031.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,290.24 : 127,936.16 = 32,687.20 : x
  2. Step 2: Convert to fraction form
    85,290.24/127,936.16 = 32,687.20/x
  3. Step 3: Cross multiply
    85,290.24x = 127,936.16 × 32,687.20
  4. Step 4: Simplify right side
    85,290.24x = 4,181,874,849.15
  5. Step 5: Solve for x
    x = 4,181,874,849.15/85,290.24
  6. Step 6: Final answer
    x = 49,031.11

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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.