Home / 91,635.21-126,463.68-51,352.72

Finding the Fourth Proportional to 91,635.21, 126,463.68 and 51,352.72

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Solution

The fourth proportional to 91,635.21, 126,463.68 and 51,352.72 is: 70,870.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,635.21 : 126,463.68 = 51,352.72 : x
  2. Step 2: Convert to fraction form
    91,635.21/126,463.68 = 51,352.72/x
  3. Step 3: Cross multiply
    91,635.21x = 126,463.68 × 51,352.72
  4. Step 4: Simplify right side
    91,635.21x = 6,494,253,633.05
  5. Step 5: Solve for x
    x = 6,494,253,633.05/91,635.21
  6. Step 6: Final answer
    x = 70,870.73

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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.