Home / 79,531.27-109,751.70-43,720.95

Finding the Fourth Proportional to 79,531.27, 109,751.70 and 43,720.95

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Solution

The fourth proportional to 79,531.27, 109,751.70 and 43,720.95 is: 60,334.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,531.27 : 109,751.70 = 43,720.95 : x
  2. Step 2: Convert to fraction form
    79,531.27/109,751.70 = 43,720.95/x
  3. Step 3: Cross multiply
    79,531.27x = 109,751.70 × 43,720.95
  4. Step 4: Simplify right side
    79,531.27x = 4,798,448,588.12
  5. Step 5: Solve for x
    x = 4,798,448,588.12/79,531.27
  6. Step 6: Final answer
    x = 60,334.11

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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.