Home / 78,552.41-117,896.52-41,138.66

Finding the Fourth Proportional to 78,552.41, 117,896.52 and 41,138.66

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Solution

The fourth proportional to 78,552.41, 117,896.52 and 41,138.66 is: 61,743.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,552.41 : 117,896.52 = 41,138.66 : x
  2. Step 2: Convert to fraction form
    78,552.41/117,896.52 = 41,138.66/x
  3. Step 3: Cross multiply
    78,552.41x = 117,896.52 × 41,138.66
  4. Step 4: Simplify right side
    78,552.41x = 4,850,104,851.46
  5. Step 5: Solve for x
    x = 4,850,104,851.46/78,552.41
  6. Step 6: Final answer
    x = 61,743.55

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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.