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Finding the Fourth Proportional to 85,014.70, 127,513.84 and 25,850.88

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Solution

The fourth proportional to 85,014.70, 127,513.84 and 25,850.88 is: 38,773.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,014.70 : 127,513.84 = 25,850.88 : x
  2. Step 2: Convert to fraction form
    85,014.70/127,513.84 = 25,850.88/x
  3. Step 3: Cross multiply
    85,014.70x = 127,513.84 × 25,850.88
  4. Step 4: Simplify right side
    85,014.70x = 3,296,344,976.18
  5. Step 5: Solve for x
    x = 3,296,344,976.18/85,014.70
  6. Step 6: Final answer
    x = 38,773.82

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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.