Home / 79,512.78-109,727.67-43,702.50

Finding the Fourth Proportional to 79,512.78, 109,727.67 and 43,702.50

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Solution

The fourth proportional to 79,512.78, 109,727.67 and 43,702.50 is: 60,309.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,512.78 : 109,727.67 = 43,702.50 : x
  2. Step 2: Convert to fraction form
    79,512.78/109,727.67 = 43,702.50/x
  3. Step 3: Cross multiply
    79,512.78x = 109,727.67 × 43,702.50
  4. Step 4: Simplify right side
    79,512.78x = 4,795,373,498.18
  5. Step 5: Solve for x
    x = 4,795,373,498.18/79,512.78
  6. Step 6: Final answer
    x = 60,309.47

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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.