Home / 91,976.82-126,933.84-51,145.53

Finding the Fourth Proportional to 91,976.82, 126,933.84 and 51,145.53

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Solution

The fourth proportional to 91,976.82, 126,933.84 and 51,145.53 is: 70,584.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,976.82 : 126,933.84 = 51,145.53 : x
  2. Step 2: Convert to fraction form
    91,976.82/126,933.84 = 51,145.53/x
  3. Step 3: Cross multiply
    91,976.82x = 126,933.84 × 51,145.53
  4. Step 4: Simplify right side
    91,976.82x = 6,492,098,521.74
  5. Step 5: Solve for x
    x = 6,492,098,521.74/91,976.82
  6. Step 6: Final answer
    x = 70,584.07

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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.