Home / 36,519.72-54,766.62-13,139.88

Finding the Fourth Proportional to 36,519.72, 54,766.62 and 13,139.88

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Solution

The fourth proportional to 36,519.72, 54,766.62 and 13,139.88 is: 19,705.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,519.72 : 54,766.62 = 13,139.88 : x
  2. Step 2: Convert to fraction form
    36,519.72/54,766.62 = 13,139.88/x
  3. Step 3: Cross multiply
    36,519.72x = 54,766.62 × 13,139.88
  4. Step 4: Simplify right side
    36,519.72x = 719,626,814.81
  5. Step 5: Solve for x
    x = 719,626,814.81/36,519.72
  6. Step 6: Final answer
    x = 19,705.16

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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.