Home / 79,180.11-109,238.15-45,190.49

Finding the Fourth Proportional to 79,180.11, 109,238.15 and 45,190.49

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Solution

The fourth proportional to 79,180.11, 109,238.15 and 45,190.49 is: 62,345.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,180.11 : 109,238.15 = 45,190.49 : x
  2. Step 2: Convert to fraction form
    79,180.11/109,238.15 = 45,190.49/x
  3. Step 3: Cross multiply
    79,180.11x = 109,238.15 × 45,190.49
  4. Step 4: Simplify right side
    79,180.11x = 4,936,525,091.98
  5. Step 5: Solve for x
    x = 4,936,525,091.98/79,180.11
  6. Step 6: Final answer
    x = 62,345.52

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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.