Home / 76,943.73-115,456.22-54,598.80

Finding the Fourth Proportional to 76,943.73, 115,456.22 and 54,598.80

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Solution

The fourth proportional to 76,943.73, 115,456.22 and 54,598.80 is: 81,927.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,943.73 : 115,456.22 = 54,598.80 : x
  2. Step 2: Convert to fraction form
    76,943.73/115,456.22 = 54,598.80/x
  3. Step 3: Cross multiply
    76,943.73x = 115,456.22 × 54,598.80
  4. Step 4: Simplify right side
    76,943.73x = 6,303,771,201.03
  5. Step 5: Solve for x
    x = 6,303,771,201.03/76,943.73
  6. Step 6: Final answer
    x = 81,927.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.