Home / 79,302.11-109,428.17-43,491.80

Finding the Fourth Proportional to 79,302.11, 109,428.17 and 43,491.80

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Solution

The fourth proportional to 79,302.11, 109,428.17 and 43,491.80 is: 60,013.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,302.11 : 109,428.17 = 43,491.80 : x
  2. Step 2: Convert to fraction form
    79,302.11/109,428.17 = 43,491.80/x
  3. Step 3: Cross multiply
    79,302.11x = 109,428.17 × 43,491.80
  4. Step 4: Simplify right side
    79,302.11x = 4,759,228,140.12
  5. Step 5: Solve for x
    x = 4,759,228,140.12/79,302.11
  6. Step 6: Final answer
    x = 60,013.89

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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.