Home / 91,078.73-125,645.75-59,236.01

Finding the Fourth Proportional to 91,078.73, 125,645.75 and 59,236.01

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Solution

The fourth proportional to 91,078.73, 125,645.75 and 59,236.01 is: 81,717.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,078.73 : 125,645.75 = 59,236.01 : x
  2. Step 2: Convert to fraction form
    91,078.73/125,645.75 = 59,236.01/x
  3. Step 3: Cross multiply
    91,078.73x = 125,645.75 × 59,236.01
  4. Step 4: Simplify right side
    91,078.73x = 7,442,752,672.36
  5. Step 5: Solve for x
    x = 7,442,752,672.36/91,078.73
  6. Step 6: Final answer
    x = 81,717.79

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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.