Home / 81,017.75-111,824.51-49,213.30

Finding the Fourth Proportional to 81,017.75, 111,824.51 and 49,213.30

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Solution

The fourth proportional to 81,017.75, 111,824.51 and 49,213.30 is: 67,926.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,017.75 : 111,824.51 = 49,213.30 : x
  2. Step 2: Convert to fraction form
    81,017.75/111,824.51 = 49,213.30/x
  3. Step 3: Cross multiply
    81,017.75x = 111,824.51 × 49,213.30
  4. Step 4: Simplify right side
    81,017.75x = 5,503,252,632.36
  5. Step 5: Solve for x
    x = 5,503,252,632.36/81,017.75
  6. Step 6: Final answer
    x = 67,926.51

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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.