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Finding the Fourth Proportional to 57,775.88, 86,604.37 and 28,157.09

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Solution

The fourth proportional to 57,775.88, 86,604.37 and 28,157.09 is: 42,206.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,775.88 : 86,604.37 = 28,157.09 : x
  2. Step 2: Convert to fraction form
    57,775.88/86,604.37 = 28,157.09/x
  3. Step 3: Cross multiply
    57,775.88x = 86,604.37 × 28,157.09
  4. Step 4: Simplify right side
    57,775.88x = 2,438,526,537.07
  5. Step 5: Solve for x
    x = 2,438,526,537.07/57,775.88
  6. Step 6: Final answer
    x = 42,206.65

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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.