Home / 81,158.26-112,069.65-50,995.84

Finding the Fourth Proportional to 81,158.26, 112,069.65 and 50,995.84

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Solution

The fourth proportional to 81,158.26, 112,069.65 and 50,995.84 is: 70,419.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,158.26 : 112,069.65 = 50,995.84 : x
  2. Step 2: Convert to fraction form
    81,158.26/112,069.65 = 50,995.84/x
  3. Step 3: Cross multiply
    81,158.26x = 112,069.65 × 50,995.84
  4. Step 4: Simplify right side
    81,158.26x = 5,715,085,940.26
  5. Step 5: Solve for x
    x = 5,715,085,940.26/81,158.26
  6. Step 6: Final answer
    x = 70,419.03

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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.