Home / 79,039.28-109,072.67-43,229.18

Finding the Fourth Proportional to 79,039.28, 109,072.67 and 43,229.18

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Solution

The fourth proportional to 79,039.28, 109,072.67 and 43,229.18 is: 59,655.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,039.28 : 109,072.67 = 43,229.18 : x
  2. Step 2: Convert to fraction form
    79,039.28/109,072.67 = 43,229.18/x
  3. Step 3: Cross multiply
    79,039.28x = 109,072.67 × 43,229.18
  4. Step 4: Simplify right side
    79,039.28x = 4,715,122,084.51
  5. Step 5: Solve for x
    x = 4,715,122,084.51/79,039.28
  6. Step 6: Final answer
    x = 59,655.43

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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.