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Finding the Fourth Proportional to 57,617.82, 79,578.80 and 38,464.25

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Solution

The fourth proportional to 57,617.82, 79,578.80 and 38,464.25 is: 53,124.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,617.82 : 79,578.80 = 38,464.25 : x
  2. Step 2: Convert to fraction form
    57,617.82/79,578.80 = 38,464.25/x
  3. Step 3: Cross multiply
    57,617.82x = 79,578.80 × 38,464.25
  4. Step 4: Simplify right side
    57,617.82x = 3,060,938,411.93
  5. Step 5: Solve for x
    x = 3,060,938,411.93/57,617.82
  6. Step 6: Final answer
    x = 53,124.86

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.