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Finding the Fourth Proportional to 52,343.70, 72,230.75 and 28,469.86

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Solution

The fourth proportional to 52,343.70, 72,230.75 and 28,469.86 is: 39,286.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,343.70 : 72,230.75 = 28,469.86 : x
  2. Step 2: Convert to fraction form
    52,343.70/72,230.75 = 28,469.86/x
  3. Step 3: Cross multiply
    52,343.70x = 72,230.75 × 28,469.86
  4. Step 4: Simplify right side
    52,343.70x = 2,056,399,340.20
  5. Step 5: Solve for x
    x = 2,056,399,340.20/52,343.70
  6. Step 6: Final answer
    x = 39,286.47

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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.