Home / 36,142.16-54,199.72-12,443.04

Finding the Fourth Proportional to 36,142.16, 54,199.72 and 12,443.04

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Solution

The fourth proportional to 36,142.16, 54,199.72 and 12,443.04 is: 18,659.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,142.16 : 54,199.72 = 12,443.04 : x
  2. Step 2: Convert to fraction form
    36,142.16/54,199.72 = 12,443.04/x
  3. Step 3: Cross multiply
    36,142.16x = 54,199.72 × 12,443.04
  4. Step 4: Simplify right side
    36,142.16x = 674,409,283.95
  5. Step 5: Solve for x
    x = 674,409,283.95/36,142.16
  6. Step 6: Final answer
    x = 18,659.91

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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.