Home / 79,617.72-119,328.12-40,186.08

Finding the Fourth Proportional to 79,617.72, 119,328.12 and 40,186.08

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Solution

The fourth proportional to 79,617.72, 119,328.12 and 40,186.08 is: 60,229.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,617.72 : 119,328.12 = 40,186.08 : x
  2. Step 2: Convert to fraction form
    79,617.72/119,328.12 = 40,186.08/x
  3. Step 3: Cross multiply
    79,617.72x = 119,328.12 × 40,186.08
  4. Step 4: Simplify right side
    79,617.72x = 4,795,329,376.57
  5. Step 5: Solve for x
    x = 4,795,329,376.57/79,617.72
  6. Step 6: Final answer
    x = 60,229.42

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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.