Home / 51,247.20-76,741.20-40,879.20

Finding the Fourth Proportional to 51,247.20, 76,741.20 and 40,879.20

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Solution

The fourth proportional to 51,247.20, 76,741.20 and 40,879.20 is: 61,215.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,247.20 : 76,741.20 = 40,879.20 : x
  2. Step 2: Convert to fraction form
    51,247.20/76,741.20 = 40,879.20/x
  3. Step 3: Cross multiply
    51,247.20x = 76,741.20 × 40,879.20
  4. Step 4: Simplify right side
    51,247.20x = 3,137,118,863.04
  5. Step 5: Solve for x
    x = 3,137,118,863.04/51,247.20
  6. Step 6: Final answer
    x = 61,215.42

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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.