Home / 79,269.81-109,389.43-43,459.04

Finding the Fourth Proportional to 79,269.81, 109,389.43 and 43,459.04

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Solution

The fourth proportional to 79,269.81, 109,389.43 and 43,459.04 is: 59,971.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,269.81 : 109,389.43 = 43,459.04 : x
  2. Step 2: Convert to fraction form
    79,269.81/109,389.43 = 43,459.04/x
  3. Step 3: Cross multiply
    79,269.81x = 109,389.43 × 43,459.04
  4. Step 4: Simplify right side
    79,269.81x = 4,753,959,613.95
  5. Step 5: Solve for x
    x = 4,753,959,613.95/79,269.81
  6. Step 6: Final answer
    x = 59,971.88

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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.