Home / 79,125.47-109,195.73-43,315.48

Finding the Fourth Proportional to 79,125.47, 109,195.73 and 43,315.48

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Solution

The fourth proportional to 79,125.47, 109,195.73 and 43,315.48 is: 59,776.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,125.47 : 109,195.73 = 43,315.48 : x
  2. Step 2: Convert to fraction form
    79,125.47/109,195.73 = 43,315.48/x
  3. Step 3: Cross multiply
    79,125.47x = 109,195.73 × 43,315.48
  4. Step 4: Simplify right side
    79,125.47x = 4,729,865,458.90
  5. Step 5: Solve for x
    x = 4,729,865,458.90/79,125.47
  6. Step 6: Final answer
    x = 59,776.78

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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.