Home / 91,872.56-126,782.52-51,586.64

Finding the Fourth Proportional to 91,872.56, 126,782.52 and 51,586.64

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Solution

The fourth proportional to 91,872.56, 126,782.52 and 51,586.64 is: 71,188.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,872.56 : 126,782.52 = 51,586.64 : x
  2. Step 2: Convert to fraction form
    91,872.56/126,782.52 = 51,586.64/x
  3. Step 3: Cross multiply
    91,872.56x = 126,782.52 × 51,586.64
  4. Step 4: Simplify right side
    91,872.56x = 6,540,284,217.53
  5. Step 5: Solve for x
    x = 6,540,284,217.53/91,872.56
  6. Step 6: Final answer
    x = 71,188.66

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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.