Home / 57,214.92-85,642.56-39,631.44

Finding the Fourth Proportional to 57,214.92, 85,642.56 and 39,631.44

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Solution

The fourth proportional to 57,214.92, 85,642.56 and 39,631.44 is: 59,322.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,214.92 : 85,642.56 = 39,631.44 : x
  2. Step 2: Convert to fraction form
    57,214.92/85,642.56 = 39,631.44/x
  3. Step 3: Cross multiply
    57,214.92x = 85,642.56 × 39,631.44
  4. Step 4: Simplify right side
    57,214.92x = 3,394,137,978.09
  5. Step 5: Solve for x
    x = 3,394,137,978.09/57,214.92
  6. Step 6: Final answer
    x = 59,322.60

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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.