Home / 79,138.26-109,210.41-43,327.62

Finding the Fourth Proportional to 79,138.26, 109,210.41 and 43,327.62

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Solution

The fourth proportional to 79,138.26, 109,210.41 and 43,327.62 is: 59,791.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,138.26 : 109,210.41 = 43,327.62 : x
  2. Step 2: Convert to fraction form
    79,138.26/109,210.41 = 43,327.62/x
  3. Step 3: Cross multiply
    79,138.26x = 109,210.41 × 43,327.62
  4. Step 4: Simplify right side
    79,138.26x = 4,731,827,144.52
  5. Step 5: Solve for x
    x = 4,731,827,144.52/79,138.26
  6. Step 6: Final answer
    x = 59,791.90

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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.