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Finding the Fourth Proportional to 52,800.40, 79,200.60 and 49,301.20

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Solution

The fourth proportional to 52,800.40, 79,200.60 and 49,301.20 is: 73,951.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,800.40 : 79,200.60 = 49,301.20 : x
  2. Step 2: Convert to fraction form
    52,800.40/79,200.60 = 49,301.20/x
  3. Step 3: Cross multiply
    52,800.40x = 79,200.60 × 49,301.20
  4. Step 4: Simplify right side
    52,800.40x = 3,904,684,620.72
  5. Step 5: Solve for x
    x = 3,904,684,620.72/52,800.40
  6. Step 6: Final answer
    x = 73,951.80

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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.