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Finding the Fourth Proportional to 92,130.20, 127,138.16 and 51,843.94

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Solution

The fourth proportional to 92,130.20, 127,138.16 and 51,843.94 is: 71,543.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,130.20 : 127,138.16 = 51,843.94 : x
  2. Step 2: Convert to fraction form
    92,130.20/127,138.16 = 51,843.94/x
  3. Step 3: Cross multiply
    92,130.20x = 127,138.16 × 51,843.94
  4. Step 4: Simplify right side
    92,130.20x = 6,591,342,879.53
  5. Step 5: Solve for x
    x = 6,591,342,879.53/92,130.20
  6. Step 6: Final answer
    x = 71,543.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.