Home / 45,421.56-68,122.01-18,760.82

Finding the Fourth Proportional to 45,421.56, 68,122.01 and 18,760.82

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Solution

The fourth proportional to 45,421.56, 68,122.01 and 18,760.82 is: 28,136.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,421.56 : 68,122.01 = 18,760.82 : x
  2. Step 2: Convert to fraction form
    45,421.56/68,122.01 = 18,760.82/x
  3. Step 3: Cross multiply
    45,421.56x = 68,122.01 × 18,760.82
  4. Step 4: Simplify right side
    45,421.56x = 1,278,024,473.94
  5. Step 5: Solve for x
    x = 1,278,024,473.94/45,421.56
  6. Step 6: Final answer
    x = 28,136.96

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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.