Home / 79,544.40-119,313.85-20,380.65

Finding the Fourth Proportional to 79,544.40, 119,313.85 and 20,380.65

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Solution

The fourth proportional to 79,544.40, 119,313.85 and 20,380.65 is: 30,570.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,544.40 : 119,313.85 = 20,380.65 : x
  2. Step 2: Convert to fraction form
    79,544.40/119,313.85 = 20,380.65/x
  3. Step 3: Cross multiply
    79,544.40x = 119,313.85 × 20,380.65
  4. Step 4: Simplify right side
    79,544.40x = 2,431,693,817.00
  5. Step 5: Solve for x
    x = 2,431,693,817.00/79,544.40
  6. Step 6: Final answer
    x = 30,570.27

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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.