Home / 79,086.75-109,135.14-43,277.46

Finding the Fourth Proportional to 79,086.75, 109,135.14 and 43,277.46

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Solution

The fourth proportional to 79,086.75, 109,135.14 and 43,277.46 is: 59,720.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,086.75 : 109,135.14 = 43,277.46 : x
  2. Step 2: Convert to fraction form
    79,086.75/109,135.14 = 43,277.46/x
  3. Step 3: Cross multiply
    79,086.75x = 109,135.14 × 43,277.46
  4. Step 4: Simplify right side
    79,086.75x = 4,723,091,655.94
  5. Step 5: Solve for x
    x = 4,723,091,655.94/79,086.75
  6. Step 6: Final answer
    x = 59,720.39

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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.