Home / 72,253.06-108,239.37-53,243.20

Finding the Fourth Proportional to 72,253.06, 108,239.37 and 53,243.20

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Solution

The fourth proportional to 72,253.06, 108,239.37 and 53,243.20 is: 79,761.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,253.06 : 108,239.37 = 53,243.20 : x
  2. Step 2: Convert to fraction form
    72,253.06/108,239.37 = 53,243.20/x
  3. Step 3: Cross multiply
    72,253.06x = 108,239.37 × 53,243.20
  4. Step 4: Simplify right side
    72,253.06x = 5,763,010,424.78
  5. Step 5: Solve for x
    x = 5,763,010,424.78/72,253.06
  6. Step 6: Final answer
    x = 79,761.47

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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.