Home / 75,764.88-113,680.08-40,663.52

Finding the Fourth Proportional to 75,764.88, 113,680.08 and 40,663.52

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Solution

The fourth proportional to 75,764.88, 113,680.08 and 40,663.52 is: 61,012.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,764.88 : 113,680.08 = 40,663.52 : x
  2. Step 2: Convert to fraction form
    75,764.88/113,680.08 = 40,663.52/x
  3. Step 3: Cross multiply
    75,764.88x = 113,680.08 × 40,663.52
  4. Step 4: Simplify right side
    75,764.88x = 4,622,632,206.68
  5. Step 5: Solve for x
    x = 4,622,632,206.68/75,764.88
  6. Step 6: Final answer
    x = 61,012.86

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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.