Home / 79,519.18-109,735.05-43,709.20

Finding the Fourth Proportional to 79,519.18, 109,735.05 and 43,709.20

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Solution

The fourth proportional to 79,519.18, 109,735.05 and 43,709.20 is: 60,317.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,519.18 : 109,735.05 = 43,709.20 : x
  2. Step 2: Convert to fraction form
    79,519.18/109,735.05 = 43,709.20/x
  3. Step 3: Cross multiply
    79,519.18x = 109,735.05 × 43,709.20
  4. Step 4: Simplify right side
    79,519.18x = 4,796,431,247.46
  5. Step 5: Solve for x
    x = 4,796,431,247.46/79,519.18
  6. Step 6: Final answer
    x = 60,317.92

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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.