Home / 79,920.20-110,289.14-43,621.28

Finding the Fourth Proportional to 79,920.20, 110,289.14 and 43,621.28

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Solution

The fourth proportional to 79,920.20, 110,289.14 and 43,621.28 is: 60,196.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,920.20 : 110,289.14 = 43,621.28 : x
  2. Step 2: Convert to fraction form
    79,920.20/110,289.14 = 43,621.28/x
  3. Step 3: Cross multiply
    79,920.20x = 110,289.14 × 43,621.28
  4. Step 4: Simplify right side
    79,920.20x = 4,810,954,130.26
  5. Step 5: Solve for x
    x = 4,810,954,130.26/79,920.20
  6. Step 6: Final answer
    x = 60,196.97

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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.