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Finding the Fourth Proportional to 85,266.92, 127,910.26 and 28,345.92

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Solution

The fourth proportional to 85,266.92, 127,910.26 and 28,345.92 is: 42,522.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,266.92 : 127,910.26 = 28,345.92 : x
  2. Step 2: Convert to fraction form
    85,266.92/127,910.26 = 28,345.92/x
  3. Step 3: Cross multiply
    85,266.92x = 127,910.26 × 28,345.92
  4. Step 4: Simplify right side
    85,266.92x = 3,625,733,997.14
  5. Step 5: Solve for x
    x = 3,625,733,997.14/85,266.92
  6. Step 6: Final answer
    x = 42,522.16

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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.