Home / 67,172.46-92,687.64-38,872.68

Finding the Fourth Proportional to 67,172.46, 92,687.64 and 38,872.68

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Solution

The fourth proportional to 67,172.46, 92,687.64 and 38,872.68 is: 53,638.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,172.46 : 92,687.64 = 38,872.68 : x
  2. Step 2: Convert to fraction form
    67,172.46/92,687.64 = 38,872.68/x
  3. Step 3: Cross multiply
    67,172.46x = 92,687.64 × 38,872.68
  4. Step 4: Simplify right side
    67,172.46x = 3,603,016,969.68
  5. Step 5: Solve for x
    x = 3,603,016,969.68/67,172.46
  6. Step 6: Final answer
    x = 53,638.31

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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.