Home / 52,221.57-78,329.92-12,776.59

Finding the Fourth Proportional to 52,221.57, 78,329.92 and 12,776.59

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Solution

The fourth proportional to 52,221.57, 78,329.92 and 12,776.59 is: 19,164.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,221.57 : 78,329.92 = 12,776.59 : x
  2. Step 2: Convert to fraction form
    52,221.57/78,329.92 = 12,776.59/x
  3. Step 3: Cross multiply
    52,221.57x = 78,329.92 × 12,776.59
  4. Step 4: Simplify right side
    52,221.57x = 1,000,789,272.57
  5. Step 5: Solve for x
    x = 1,000,789,272.57/52,221.57
  6. Step 6: Final answer
    x = 19,164.29

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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.