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Finding the Fourth Proportional to 57,491.40, 79,338 and 32,340.90

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Solution

The fourth proportional to 57,491.40, 79,338 and 32,340.90 is: 44,630.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,491.40 : 79,338 = 32,340.90 : x
  2. Step 2: Convert to fraction form
    57,491.40/79,338 = 32,340.90/x
  3. Step 3: Cross multiply
    57,491.40x = 79,338 × 32,340.90
  4. Step 4: Simplify right side
    57,491.40x = 2,565,862,324.20
  5. Step 5: Solve for x
    x = 2,565,862,324.20/57,491.40
  6. Step 6: Final answer
    x = 44,630.37

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Why These Related Problems?

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