Home / 79,110.24-109,171.73-42,811.66

Finding the Fourth Proportional to 79,110.24, 109,171.73 and 42,811.66

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Solution

The fourth proportional to 79,110.24, 109,171.73 and 42,811.66 is: 59,079.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,110.24 : 109,171.73 = 42,811.66 : x
  2. Step 2: Convert to fraction form
    79,110.24/109,171.73 = 42,811.66/x
  3. Step 3: Cross multiply
    79,110.24x = 109,171.73 × 42,811.66
  4. Step 4: Simplify right side
    79,110.24x = 4,673,822,956.94
  5. Step 5: Solve for x
    x = 4,673,822,956.94/79,110.24
  6. Step 6: Final answer
    x = 59,079.87

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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.