Home / 52,059.27-78,121.04-20,463.80

Finding the Fourth Proportional to 52,059.27, 78,121.04 and 20,463.80

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Solution

The fourth proportional to 52,059.27, 78,121.04 and 20,463.80 is: 30,708.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,059.27 : 78,121.04 = 20,463.80 : x
  2. Step 2: Convert to fraction form
    52,059.27/78,121.04 = 20,463.80/x
  3. Step 3: Cross multiply
    52,059.27x = 78,121.04 × 20,463.80
  4. Step 4: Simplify right side
    52,059.27x = 1,598,653,431.34
  5. Step 5: Solve for x
    x = 1,598,653,431.34/52,059.27
  6. Step 6: Final answer
    x = 30,708.33

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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.