Home / 78,706.26-108,616.94-42,898.58

Finding the Fourth Proportional to 78,706.26, 108,616.94 and 42,898.58

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Solution

The fourth proportional to 78,706.26, 108,616.94 and 42,898.58 is: 59,201.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,706.26 : 108,616.94 = 42,898.58 : x
  2. Step 2: Convert to fraction form
    78,706.26/108,616.94 = 42,898.58/x
  3. Step 3: Cross multiply
    78,706.26x = 108,616.94 × 42,898.58
  4. Step 4: Simplify right side
    78,706.26x = 4,659,512,489.95
  5. Step 5: Solve for x
    x = 4,659,512,489.95/78,706.26
  6. Step 6: Final answer
    x = 59,201.29

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1.5x scale

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.