Home / 99,540.35-149,371.88-40,376.54

Finding the Fourth Proportional to 99,540.35, 149,371.88 and 40,376.54

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Solution

The fourth proportional to 99,540.35, 149,371.88 and 40,376.54 is: 60,589.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,540.35 : 149,371.88 = 40,376.54 : x
  2. Step 2: Convert to fraction form
    99,540.35/149,371.88 = 40,376.54/x
  3. Step 3: Cross multiply
    99,540.35x = 149,371.88 × 40,376.54
  4. Step 4: Simplify right side
    99,540.35x = 6,031,118,738.95
  5. Step 5: Solve for x
    x = 6,031,118,738.95/99,540.35
  6. Step 6: Final answer
    x = 60,589.69

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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.