Home / 79,126.25-109,194.39-43,318.49

Finding the Fourth Proportional to 79,126.25, 109,194.39 and 43,318.49

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Solution

The fourth proportional to 79,126.25, 109,194.39 and 43,318.49 is: 59,779.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,126.25 : 109,194.39 = 43,318.49 : x
  2. Step 2: Convert to fraction form
    79,126.25/109,194.39 = 43,318.49/x
  3. Step 3: Cross multiply
    79,126.25x = 109,194.39 × 43,318.49
  4. Step 4: Simplify right side
    79,126.25x = 4,730,135,545.30
  5. Step 5: Solve for x
    x = 4,730,135,545.30/79,126.25
  6. Step 6: Final answer
    x = 59,779.60

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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.