Home / 79,126.69-109,195.02-43,319.02

Finding the Fourth Proportional to 79,126.69, 109,195.02 and 43,319.02

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Solution

The fourth proportional to 79,126.69, 109,195.02 and 43,319.02 is: 59,780.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,126.69 : 109,195.02 = 43,319.02 : x
  2. Step 2: Convert to fraction form
    79,126.69/109,195.02 = 43,319.02/x
  3. Step 3: Cross multiply
    79,126.69x = 109,195.02 × 43,319.02
  4. Step 4: Simplify right side
    79,126.69x = 4,730,221,255.28
  5. Step 5: Solve for x
    x = 4,730,221,255.28/79,126.69
  6. Step 6: Final answer
    x = 59,780.35

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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.