Home / 80,120.76-120,075.96-58,961.72

Finding the Fourth Proportional to 80,120.76, 120,075.96 and 58,961.72

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Solution

The fourth proportional to 80,120.76, 120,075.96 and 58,961.72 is: 88,365.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,120.76 : 120,075.96 = 58,961.72 : x
  2. Step 2: Convert to fraction form
    80,120.76/120,075.96 = 58,961.72/x
  3. Step 3: Cross multiply
    80,120.76x = 120,075.96 × 58,961.72
  4. Step 4: Simplify right side
    80,120.76x = 7,079,885,132.25
  5. Step 5: Solve for x
    x = 7,079,885,132.25/80,120.76
  6. Step 6: Final answer
    x = 88,365.18

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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.