Home / 91,991.73-126,952.18-51,705.37

Finding the Fourth Proportional to 91,991.73, 126,952.18 and 51,705.37

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Solution

The fourth proportional to 91,991.73, 126,952.18 and 51,705.37 is: 71,355.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,991.73 : 126,952.18 = 51,705.37 : x
  2. Step 2: Convert to fraction form
    91,991.73/126,952.18 = 51,705.37/x
  3. Step 3: Cross multiply
    91,991.73x = 126,952.18 × 51,705.37
  4. Step 4: Simplify right side
    91,991.73x = 6,564,108,992.56
  5. Step 5: Solve for x
    x = 6,564,108,992.56/91,991.73
  6. Step 6: Final answer
    x = 71,355.43

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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.