Home / 79,072.61-109,119.23-43,262.11

Finding the Fourth Proportional to 79,072.61, 109,119.23 and 43,262.11

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Solution

The fourth proportional to 79,072.61, 109,119.23 and 43,262.11 is: 59,701.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,072.61 : 109,119.23 = 43,262.11 : x
  2. Step 2: Convert to fraction form
    79,072.61/109,119.23 = 43,262.11/x
  3. Step 3: Cross multiply
    79,072.61x = 109,119.23 × 43,262.11
  4. Step 4: Simplify right side
    79,072.61x = 4,720,727,585.78
  5. Step 5: Solve for x
    x = 4,720,727,585.78/79,072.61
  6. Step 6: Final answer
    x = 59,701.17

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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.