Home / 52,737.89-79,144.70-20,721.83

Finding the Fourth Proportional to 52,737.89, 79,144.70 and 20,721.83

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Solution

The fourth proportional to 52,737.89, 79,144.70 and 20,721.83 is: 31,097.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,737.89 : 79,144.70 = 20,721.83 : x
  2. Step 2: Convert to fraction form
    52,737.89/79,144.70 = 20,721.83/x
  3. Step 3: Cross multiply
    52,737.89x = 79,144.70 × 20,721.83
  4. Step 4: Simplify right side
    52,737.89x = 1,640,022,519.47
  5. Step 5: Solve for x
    x = 1,640,022,519.47/52,737.89
  6. Step 6: Final answer
    x = 31,097.62

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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.