Home / 78,966.78-108,979.42-44,520.02

Finding the Fourth Proportional to 78,966.78, 108,979.42 and 44,520.02

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Solution

The fourth proportional to 78,966.78, 108,979.42 and 44,520.02 is: 61,440.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,966.78 : 108,979.42 = 44,520.02 : x
  2. Step 2: Convert to fraction form
    78,966.78/108,979.42 = 44,520.02/x
  3. Step 3: Cross multiply
    78,966.78x = 108,979.42 × 44,520.02
  4. Step 4: Simplify right side
    78,966.78x = 4,851,765,413.09
  5. Step 5: Solve for x
    x = 4,851,765,413.09/78,966.78
  6. Step 6: Final answer
    x = 61,440.59

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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.