Home / 52,074.56-78,115.48-20,909.82

Finding the Fourth Proportional to 52,074.56, 78,115.48 and 20,909.82

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Solution

The fourth proportional to 52,074.56, 78,115.48 and 20,909.82 is: 31,366.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,074.56 : 78,115.48 = 20,909.82 : x
  2. Step 2: Convert to fraction form
    52,074.56/78,115.48 = 20,909.82/x
  3. Step 3: Cross multiply
    52,074.56x = 78,115.48 × 20,909.82
  4. Step 4: Simplify right side
    52,074.56x = 1,633,380,626.01
  5. Step 5: Solve for x
    x = 1,633,380,626.01/52,074.56
  6. Step 6: Final answer
    x = 31,366.19

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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.