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Finding the Fourth Proportional to 80,065.46, 120,135.56 and 35,687.59

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Solution

The fourth proportional to 80,065.46, 120,135.56 and 35,687.59 is: 53,548.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,065.46 : 120,135.56 = 35,687.59 : x
  2. Step 2: Convert to fraction form
    80,065.46/120,135.56 = 35,687.59/x
  3. Step 3: Cross multiply
    80,065.46x = 120,135.56 × 35,687.59
  4. Step 4: Simplify right side
    80,065.46x = 4,287,348,130.92
  5. Step 5: Solve for x
    x = 4,287,348,130.92/80,065.46
  6. Step 6: Final answer
    x = 53,548.03

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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.