Home / 78,957.07-108,956.13-43,147.36

Finding the Fourth Proportional to 78,957.07, 108,956.13 and 43,147.36

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Solution

The fourth proportional to 78,957.07, 108,956.13 and 43,147.36 is: 59,540.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,957.07 : 108,956.13 = 43,147.36 : x
  2. Step 2: Convert to fraction form
    78,957.07/108,956.13 = 43,147.36/x
  3. Step 3: Cross multiply
    78,957.07x = 108,956.13 × 43,147.36
  4. Step 4: Simplify right side
    78,957.07x = 4,701,169,365.32
  5. Step 5: Solve for x
    x = 4,701,169,365.32/78,957.07
  6. Step 6: Final answer
    x = 59,540.83

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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.