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Finding the Fourth Proportional to 91,798.08, 126,682.56 and 51,520.56

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Solution

The fourth proportional to 91,798.08, 126,682.56 and 51,520.56 is: 71,099.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,798.08 : 126,682.56 = 51,520.56 : x
  2. Step 2: Convert to fraction form
    91,798.08/126,682.56 = 51,520.56/x
  3. Step 3: Cross multiply
    91,798.08x = 126,682.56 × 51,520.56
  4. Step 4: Simplify right side
    91,798.08x = 6,526,756,433.43
  5. Step 5: Solve for x
    x = 6,526,756,433.43/91,798.08
  6. Step 6: Final answer
    x = 71,099.05

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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.