Home / 69,761.28-104,639.58-30,318.39

Finding the Fourth Proportional to 69,761.28, 104,639.58 and 30,318.39

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Solution

The fourth proportional to 69,761.28, 104,639.58 and 30,318.39 is: 45,476.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,761.28 : 104,639.58 = 30,318.39 : x
  2. Step 2: Convert to fraction form
    69,761.28/104,639.58 = 30,318.39/x
  3. Step 3: Cross multiply
    69,761.28x = 104,639.58 × 30,318.39
  4. Step 4: Simplify right side
    69,761.28x = 3,172,503,595.88
  5. Step 5: Solve for x
    x = 3,172,503,595.88/69,761.28
  6. Step 6: Final answer
    x = 45,476.57

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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.