Home / 78,916.27-108,902.66-43,106.44

Finding the Fourth Proportional to 78,916.27, 108,902.66 and 43,106.44

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Solution

The fourth proportional to 78,916.27, 108,902.66 and 43,106.44 is: 59,485.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,916.27 : 108,902.66 = 43,106.44 : x
  2. Step 2: Convert to fraction form
    78,916.27/108,902.66 = 43,106.44/x
  3. Step 3: Cross multiply
    78,916.27x = 108,902.66 × 43,106.44
  4. Step 4: Simplify right side
    78,916.27x = 4,694,405,979.13
  5. Step 5: Solve for x
    x = 4,694,405,979.13/78,916.27
  6. Step 6: Final answer
    x = 59,485.91

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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.