Home / 79,451.74-119,177.55-20,287.42

Finding the Fourth Proportional to 79,451.74, 119,177.55 and 20,287.42

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Solution

The fourth proportional to 79,451.74, 119,177.55 and 20,287.42 is: 30,431.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,451.74 : 119,177.55 = 20,287.42 : x
  2. Step 2: Convert to fraction form
    79,451.74/119,177.55 = 20,287.42/x
  3. Step 3: Cross multiply
    79,451.74x = 119,177.55 × 20,287.42
  4. Step 4: Simplify right side
    79,451.74x = 2,417,805,011.42
  5. Step 5: Solve for x
    x = 2,417,805,011.42/79,451.74
  6. Step 6: Final answer
    x = 30,431.11

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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.