Home / 91,243.74-125,872.62-57,235.14

Finding the Fourth Proportional to 91,243.74, 125,872.62 and 57,235.14

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Solution

The fourth proportional to 91,243.74, 125,872.62 and 57,235.14 is: 78,957.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,243.74 : 125,872.62 = 57,235.14 : x
  2. Step 2: Convert to fraction form
    91,243.74/125,872.62 = 57,235.14/x
  3. Step 3: Cross multiply
    91,243.74x = 125,872.62 × 57,235.14
  4. Step 4: Simplify right side
    91,243.74x = 7,204,337,027.87
  5. Step 5: Solve for x
    x = 7,204,337,027.87/91,243.74
  6. Step 6: Final answer
    x = 78,957.06

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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.