Home / 91,391.24-125,839.54-79,996.97

Finding the Fourth Proportional to 91,391.24, 125,839.54 and 79,996.97

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Solution

The fourth proportional to 91,391.24, 125,839.54 and 79,996.97 is: 110,150.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,391.24 : 125,839.54 = 79,996.97 : x
  2. Step 2: Convert to fraction form
    91,391.24/125,839.54 = 79,996.97/x
  3. Step 3: Cross multiply
    91,391.24x = 125,839.54 × 79,996.97
  4. Step 4: Simplify right side
    91,391.24x = 10,066,782,320.79
  5. Step 5: Solve for x
    x = 10,066,782,320.79/91,391.24
  6. Step 6: Final answer
    x = 110,150.40

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1.5x scale

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.