Home / 52,519.68-78,747.84-20,934.60

Finding the Fourth Proportional to 52,519.68, 78,747.84 and 20,934.60

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Solution

The fourth proportional to 52,519.68, 78,747.84 and 20,934.60 is: 31,389.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,519.68 : 78,747.84 = 20,934.60 : x
  2. Step 2: Convert to fraction form
    52,519.68/78,747.84 = 20,934.60/x
  3. Step 3: Cross multiply
    52,519.68x = 78,747.84 × 20,934.60
  4. Step 4: Simplify right side
    52,519.68x = 1,648,554,531.26
  5. Step 5: Solve for x
    x = 1,648,554,531.26/52,519.68
  6. Step 6: Final answer
    x = 31,389.27

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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.