Home / 80,075.20-120,132.48-27,485.44

Finding the Fourth Proportional to 80,075.20, 120,132.48 and 27,485.44

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Solution

The fourth proportional to 80,075.20, 120,132.48 and 27,485.44 is: 41,234.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,075.20 : 120,132.48 = 27,485.44 : x
  2. Step 2: Convert to fraction form
    80,075.20/120,132.48 = 27,485.44/x
  3. Step 3: Cross multiply
    80,075.20x = 120,132.48 × 27,485.44
  4. Step 4: Simplify right side
    80,075.20x = 3,301,894,071.09
  5. Step 5: Solve for x
    x = 3,301,894,071.09/80,075.20
  6. Step 6: Final answer
    x = 41,234.92

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1.5x scale

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.