Home / 78,678.33-118,052.37-41,229.49

Finding the Fourth Proportional to 78,678.33, 118,052.37 and 41,229.49

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Solution

The fourth proportional to 78,678.33, 118,052.37 and 41,229.49 is: 61,862.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,678.33 : 118,052.37 = 41,229.49 : x
  2. Step 2: Convert to fraction form
    78,678.33/118,052.37 = 41,229.49/x
  3. Step 3: Cross multiply
    78,678.33x = 118,052.37 × 41,229.49
  4. Step 4: Simplify right side
    78,678.33x = 4,867,239,008.39
  5. Step 5: Solve for x
    x = 4,867,239,008.39/78,678.33
  6. Step 6: Final answer
    x = 61,862.51

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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.