Home / 40,181.12-60,270.88-12,479.04

Finding the Fourth Proportional to 40,181.12, 60,270.88 and 12,479.04

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Solution

The fourth proportional to 40,181.12, 60,270.88 and 12,479.04 is: 18,718.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,181.12 : 60,270.88 = 12,479.04 : x
  2. Step 2: Convert to fraction form
    40,181.12/60,270.88 = 12,479.04/x
  3. Step 3: Cross multiply
    40,181.12x = 60,270.88 × 12,479.04
  4. Step 4: Simplify right side
    40,181.12x = 752,122,722.36
  5. Step 5: Solve for x
    x = 752,122,722.36/40,181.12
  6. Step 6: Final answer
    x = 18,718.31

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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.