Home / 36,132.60-54,198.90-12,761.40

Finding the Fourth Proportional to 36,132.60, 54,198.90 and 12,761.40

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Solution

The fourth proportional to 36,132.60, 54,198.90 and 12,761.40 is: 19,142.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,132.60 : 54,198.90 = 12,761.40 : x
  2. Step 2: Convert to fraction form
    36,132.60/54,198.90 = 12,761.40/x
  3. Step 3: Cross multiply
    36,132.60x = 54,198.90 × 12,761.40
  4. Step 4: Simplify right side
    36,132.60x = 691,653,842.46
  5. Step 5: Solve for x
    x = 691,653,842.46/36,132.60
  6. Step 6: Final answer
    x = 19,142.10

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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.