Home / 51,378.68-77,059.62-18,090.92

Finding the Fourth Proportional to 51,378.68, 77,059.62 and 18,090.92

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Solution

The fourth proportional to 51,378.68, 77,059.62 and 18,090.92 is: 27,133.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,378.68 : 77,059.62 = 18,090.92 : x
  2. Step 2: Convert to fraction form
    51,378.68/77,059.62 = 18,090.92/x
  3. Step 3: Cross multiply
    51,378.68x = 77,059.62 × 18,090.92
  4. Step 4: Simplify right side
    51,378.68x = 1,394,079,613.30
  5. Step 5: Solve for x
    x = 1,394,079,613.30/51,378.68
  6. Step 6: Final answer
    x = 27,133.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.