Home / 54,036.12-80,998.72-20,747.24

Finding the Fourth Proportional to 54,036.12, 80,998.72 and 20,747.24

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Solution

The fourth proportional to 54,036.12, 80,998.72 and 20,747.24 is: 31,099.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,036.12 : 80,998.72 = 20,747.24 : x
  2. Step 2: Convert to fraction form
    54,036.12/80,998.72 = 20,747.24/x
  3. Step 3: Cross multiply
    54,036.12x = 80,998.72 × 20,747.24
  4. Step 4: Simplify right side
    54,036.12x = 1,680,499,883.53
  5. Step 5: Solve for x
    x = 1,680,499,883.53/54,036.12
  6. Step 6: Final answer
    x = 31,099.57

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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.