Home / 78,928.27-108,919.23-43,118.44

Finding the Fourth Proportional to 78,928.27, 108,919.23 and 43,118.44

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Solution

The fourth proportional to 78,928.27, 108,919.23 and 43,118.44 is: 59,502.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,928.27 : 108,919.23 = 43,118.44 : x
  2. Step 2: Convert to fraction form
    78,928.27/108,919.23 = 43,118.44/x
  3. Step 3: Cross multiply
    78,928.27x = 108,919.23 × 43,118.44
  4. Step 4: Simplify right side
    78,928.27x = 4,696,427,283.60
  5. Step 5: Solve for x
    x = 4,696,427,283.60/78,928.27
  6. Step 6: Final answer
    x = 59,502.47

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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.