Home / 69,007.79-103,511.57-21,626.53

Finding the Fourth Proportional to 69,007.79, 103,511.57 and 21,626.53

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Solution

The fourth proportional to 69,007.79, 103,511.57 and 21,626.53 is: 32,439.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,007.79 : 103,511.57 = 21,626.53 : x
  2. Step 2: Convert to fraction form
    69,007.79/103,511.57 = 21,626.53/x
  3. Step 3: Cross multiply
    69,007.79x = 103,511.57 × 21,626.53
  4. Step 4: Simplify right side
    69,007.79x = 2,238,596,073.95
  5. Step 5: Solve for x
    x = 2,238,596,073.95/69,007.79
  6. Step 6: Final answer
    x = 32,439.76

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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.