Home / 79,090.55-109,144.96-43,280.57

Finding the Fourth Proportional to 79,090.55, 109,144.96 and 43,280.57

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Solution

The fourth proportional to 79,090.55, 109,144.96 and 43,280.57 is: 59,727.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,090.55 : 109,144.96 = 43,280.57 : x
  2. Step 2: Convert to fraction form
    79,090.55/109,144.96 = 43,280.57/x
  3. Step 3: Cross multiply
    79,090.55x = 109,144.96 × 43,280.57
  4. Step 4: Simplify right side
    79,090.55x = 4,723,856,246.09
  5. Step 5: Solve for x
    x = 4,723,856,246.09/79,090.55
  6. Step 6: Final answer
    x = 59,727.19

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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.