Home / 40,805.76-61,159.38-21,073.56

Finding the Fourth Proportional to 40,805.76, 61,159.38 and 21,073.56

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Solution

The fourth proportional to 40,805.76, 61,159.38 and 21,073.56 is: 31,584.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,805.76 : 61,159.38 = 21,073.56 : x
  2. Step 2: Convert to fraction form
    40,805.76/61,159.38 = 21,073.56/x
  3. Step 3: Cross multiply
    40,805.76x = 61,159.38 × 21,073.56
  4. Step 4: Simplify right side
    40,805.76x = 1,288,845,863.99
  5. Step 5: Solve for x
    x = 1,288,845,863.99/40,805.76
  6. Step 6: Final answer
    x = 31,584.90

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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.