Home / 52,221.33-78,340.91-20,614.86

Finding the Fourth Proportional to 52,221.33, 78,340.91 and 20,614.86

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Solution

The fourth proportional to 52,221.33, 78,340.91 and 20,614.86 is: 30,925.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,221.33 : 78,340.91 = 20,614.86 : x
  2. Step 2: Convert to fraction form
    52,221.33/78,340.91 = 20,614.86/x
  3. Step 3: Cross multiply
    52,221.33x = 78,340.91 × 20,614.86
  4. Step 4: Simplify right side
    52,221.33x = 1,614,986,788.85
  5. Step 5: Solve for x
    x = 1,614,986,788.85/52,221.33
  6. Step 6: Final answer
    x = 30,925.81

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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.