Home / 91,682.72-126,521.37-51,396.36

Finding the Fourth Proportional to 91,682.72, 126,521.37 and 51,396.36

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Solution

The fourth proportional to 91,682.72, 126,521.37 and 51,396.36 is: 70,926.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,682.72 : 126,521.37 = 51,396.36 : x
  2. Step 2: Convert to fraction form
    91,682.72/126,521.37 = 51,396.36/x
  3. Step 3: Cross multiply
    91,682.72x = 126,521.37 × 51,396.36
  4. Step 4: Simplify right side
    91,682.72x = 6,502,737,880.21
  5. Step 5: Solve for x
    x = 6,502,737,880.21/91,682.72
  6. Step 6: Final answer
    x = 70,926.54

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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.