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Finding the Fourth Proportional to 85,264.92, 127,907.26 and 28,343.92

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Solution

The fourth proportional to 85,264.92, 127,907.26 and 28,343.92 is: 42,519.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,264.92 : 127,907.26 = 28,343.92 : x
  2. Step 2: Convert to fraction form
    85,264.92/127,907.26 = 28,343.92/x
  3. Step 3: Cross multiply
    85,264.92x = 127,907.26 × 28,343.92
  4. Step 4: Simplify right side
    85,264.92x = 3,625,393,144.86
  5. Step 5: Solve for x
    x = 3,625,393,144.86/85,264.92
  6. Step 6: Final answer
    x = 42,519.16

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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.