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Finding the Fourth Proportional to 57,089.23, 85,642.05 and 17,649.42

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Solution

The fourth proportional to 57,089.23, 85,642.05 and 17,649.42 is: 26,476.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,089.23 : 85,642.05 = 17,649.42 : x
  2. Step 2: Convert to fraction form
    57,089.23/85,642.05 = 17,649.42/x
  3. Step 3: Cross multiply
    57,089.23x = 85,642.05 × 17,649.42
  4. Step 4: Simplify right side
    57,089.23x = 1,511,532,736.88
  5. Step 5: Solve for x
    x = 1,511,532,736.88/57,089.23
  6. Step 6: Final answer
    x = 26,476.67

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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.