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Finding the Fourth Proportional to 69,137.70, 103,639.14 and 37,519.17

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Solution

The fourth proportional to 69,137.70, 103,639.14 and 37,519.17 is: 56,242.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,137.70 : 103,639.14 = 37,519.17 : x
  2. Step 2: Convert to fraction form
    69,137.70/103,639.14 = 37,519.17/x
  3. Step 3: Cross multiply
    69,137.70x = 103,639.14 × 37,519.17
  4. Step 4: Simplify right side
    69,137.70x = 3,888,454,512.31
  5. Step 5: Solve for x
    x = 3,888,454,512.31/69,137.70
  6. Step 6: Final answer
    x = 56,242.17

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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.