Home / 83,750.52-115,566.01-47,938.39

Finding the Fourth Proportional to 83,750.52, 115,566.01 and 47,938.39

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Solution

The fourth proportional to 83,750.52, 115,566.01 and 47,938.39 is: 66,149.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,750.52 : 115,566.01 = 47,938.39 : x
  2. Step 2: Convert to fraction form
    83,750.52/115,566.01 = 47,938.39/x
  3. Step 3: Cross multiply
    83,750.52x = 115,566.01 × 47,938.39
  4. Step 4: Simplify right side
    83,750.52x = 5,540,048,458.12
  5. Step 5: Solve for x
    x = 5,540,048,458.12/83,750.52
  6. Step 6: Final answer
    x = 66,149.42

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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.