Home / 89,717.52-135,044.22-76,187.28

Finding the Fourth Proportional to 89,717.52, 135,044.22 and 76,187.28

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Solution

The fourth proportional to 89,717.52, 135,044.22 and 76,187.28 is: 114,678.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,717.52 : 135,044.22 = 76,187.28 : x
  2. Step 2: Convert to fraction form
    89,717.52/135,044.22 = 76,187.28/x
  3. Step 3: Cross multiply
    89,717.52x = 135,044.22 × 76,187.28
  4. Step 4: Simplify right side
    89,717.52x = 10,288,651,801.52
  5. Step 5: Solve for x
    x = 10,288,651,801.52/89,717.52
  6. Step 6: Final answer
    x = 114,678.29

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.