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Finding the Fourth Proportional to 67,324.40, 101,006.28 and 19,940.72

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Solution

The fourth proportional to 67,324.40, 101,006.28 and 19,940.72 is: 29,916.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,324.40 : 101,006.28 = 19,940.72 : x
  2. Step 2: Convert to fraction form
    67,324.40/101,006.28 = 19,940.72/x
  3. Step 3: Cross multiply
    67,324.40x = 101,006.28 × 19,940.72
  4. Step 4: Simplify right side
    67,324.40x = 2,014,137,947.72
  5. Step 5: Solve for x
    x = 2,014,137,947.72/67,324.40
  6. Step 6: Final answer
    x = 29,916.91

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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.