Home / 77,142.33-115,727.22-27,251.37

Finding the Fourth Proportional to 77,142.33, 115,727.22 and 27,251.37

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Solution

The fourth proportional to 77,142.33, 115,727.22 and 27,251.37 is: 40,881.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,142.33 : 115,727.22 = 27,251.37 : x
  2. Step 2: Convert to fraction form
    77,142.33/115,727.22 = 27,251.37/x
  3. Step 3: Cross multiply
    77,142.33x = 115,727.22 × 27,251.37
  4. Step 4: Simplify right side
    77,142.33x = 3,153,725,291.29
  5. Step 5: Solve for x
    x = 3,153,725,291.29/77,142.33
  6. Step 6: Final answer
    x = 40,881.90

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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.