Home / 91,396.94-126,131.21-51,110.61

Finding the Fourth Proportional to 91,396.94, 126,131.21 and 51,110.61

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Solution

The fourth proportional to 91,396.94, 126,131.21 and 51,110.61 is: 70,534.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,396.94 : 126,131.21 = 51,110.61 : x
  2. Step 2: Convert to fraction form
    91,396.94/126,131.21 = 51,110.61/x
  3. Step 3: Cross multiply
    91,396.94x = 126,131.21 × 51,110.61
  4. Step 4: Simplify right side
    91,396.94x = 6,446,642,827.59
  5. Step 5: Solve for x
    x = 6,446,642,827.59/91,396.94
  6. Step 6: Final answer
    x = 70,534.56

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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.