Home / 69,370.76-95,721.38-40,679.59

Finding the Fourth Proportional to 69,370.76, 95,721.38 and 40,679.59

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Solution

The fourth proportional to 69,370.76, 95,721.38 and 40,679.59 is: 56,131.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,370.76 : 95,721.38 = 40,679.59 : x
  2. Step 2: Convert to fraction form
    69,370.76/95,721.38 = 40,679.59/x
  3. Step 3: Cross multiply
    69,370.76x = 95,721.38 × 40,679.59
  4. Step 4: Simplify right side
    69,370.76x = 3,893,906,561.44
  5. Step 5: Solve for x
    x = 3,893,906,561.44/69,370.76
  6. Step 6: Final answer
    x = 56,131.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.