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Finding the Fourth Proportional to 85,012.65, 127,523.52 and 25,843.86

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Solution

The fourth proportional to 85,012.65, 127,523.52 and 25,843.86 is: 38,767.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,012.65 : 127,523.52 = 25,843.86 : x
  2. Step 2: Convert to fraction form
    85,012.65/127,523.52 = 25,843.86/x
  3. Step 3: Cross multiply
    85,012.65x = 127,523.52 × 25,843.86
  4. Step 4: Simplify right side
    85,012.65x = 3,295,699,997.59
  5. Step 5: Solve for x
    x = 3,295,699,997.59/85,012.65
  6. Step 6: Final answer
    x = 38,767.17

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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.