Home / 52,132.40-78,198.60-49,857.20

Finding the Fourth Proportional to 52,132.40, 78,198.60 and 49,857.20

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Solution

The fourth proportional to 52,132.40, 78,198.60 and 49,857.20 is: 74,785.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,132.40 : 78,198.60 = 49,857.20 : x
  2. Step 2: Convert to fraction form
    52,132.40/78,198.60 = 49,857.20/x
  3. Step 3: Cross multiply
    52,132.40x = 78,198.60 × 49,857.20
  4. Step 4: Simplify right side
    52,132.40x = 3,898,763,239.92
  5. Step 5: Solve for x
    x = 3,898,763,239.92/52,132.40
  6. Step 6: Final answer
    x = 74,785.80

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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.