Home / 79,541.03-119,308.79-20,377.28

Finding the Fourth Proportional to 79,541.03, 119,308.79 and 20,377.28

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Solution

The fourth proportional to 79,541.03, 119,308.79 and 20,377.28 is: 30,565.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,541.03 : 119,308.79 = 20,377.28 : x
  2. Step 2: Convert to fraction form
    79,541.03/119,308.79 = 20,377.28/x
  3. Step 3: Cross multiply
    79,541.03x = 119,308.79 × 20,377.28
  4. Step 4: Simplify right side
    79,541.03x = 2,431,188,074.69
  5. Step 5: Solve for x
    x = 2,431,188,074.69/79,541.03
  6. Step 6: Final answer
    x = 30,565.21

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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.