Home / 83,918.28-115,770.80-48,100.08

Finding the Fourth Proportional to 83,918.28, 115,770.80 and 48,100.08

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Solution

The fourth proportional to 83,918.28, 115,770.80 and 48,100.08 is: 66,357.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,918.28 : 115,770.80 = 48,100.08 : x
  2. Step 2: Convert to fraction form
    83,918.28/115,770.80 = 48,100.08/x
  3. Step 3: Cross multiply
    83,918.28x = 115,770.80 × 48,100.08
  4. Step 4: Simplify right side
    83,918.28x = 5,568,584,741.66
  5. Step 5: Solve for x
    x = 5,568,584,741.66/83,918.28
  6. Step 6: Final answer
    x = 66,357.23

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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.