Home / 91,690.20-126,541.44-51,404.04

Finding the Fourth Proportional to 91,690.20, 126,541.44 and 51,404.04

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Solution

The fourth proportional to 91,690.20, 126,541.44 and 51,404.04 is: 70,942.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,690.20 : 126,541.44 = 51,404.04 : x
  2. Step 2: Convert to fraction form
    91,690.20/126,541.44 = 51,404.04/x
  3. Step 3: Cross multiply
    91,690.20x = 126,541.44 × 51,404.04
  4. Step 4: Simplify right side
    91,690.20x = 6,504,741,243.42
  5. Step 5: Solve for x
    x = 6,504,741,243.42/91,690.20
  6. Step 6: Final answer
    x = 70,942.60

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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.