Home / 91,396.43-126,126.20-51,109.73

Finding the Fourth Proportional to 91,396.43, 126,126.20 and 51,109.73

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Solution

The fourth proportional to 91,396.43, 126,126.20 and 51,109.73 is: 70,530.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,396.43 : 126,126.20 = 51,109.73 : x
  2. Step 2: Convert to fraction form
    91,396.43/126,126.20 = 51,109.73/x
  3. Step 3: Cross multiply
    91,396.43x = 126,126.20 × 51,109.73
  4. Step 4: Simplify right side
    91,396.43x = 6,446,275,525.07
  5. Step 5: Solve for x
    x = 6,446,275,525.07/91,396.43
  6. Step 6: Final answer
    x = 70,530.94

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1.5x scale

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.