Home / 78,544.41-108,391.73-42,734.66

Finding the Fourth Proportional to 78,544.41, 108,391.73 and 42,734.66

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Solution

The fourth proportional to 78,544.41, 108,391.73 and 42,734.66 is: 58,974.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,544.41 : 108,391.73 = 42,734.66 : x
  2. Step 2: Convert to fraction form
    78,544.41/108,391.73 = 42,734.66/x
  3. Step 3: Cross multiply
    78,544.41x = 108,391.73 × 42,734.66
  4. Step 4: Simplify right side
    78,544.41x = 4,632,083,728.36
  5. Step 5: Solve for x
    x = 4,632,083,728.36/78,544.41
  6. Step 6: Final answer
    x = 58,974.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.