Home / 69,093.90-103,639.68-31,122.05

Finding the Fourth Proportional to 69,093.90, 103,639.68 and 31,122.05

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Solution

The fourth proportional to 69,093.90, 103,639.68 and 31,122.05 is: 46,682.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,093.90 : 103,639.68 = 31,122.05 : x
  2. Step 2: Convert to fraction form
    69,093.90/103,639.68 = 31,122.05/x
  3. Step 3: Cross multiply
    69,093.90x = 103,639.68 × 31,122.05
  4. Step 4: Simplify right side
    69,093.90x = 3,225,479,302.94
  5. Step 5: Solve for x
    x = 3,225,479,302.94/69,093.90
  6. Step 6: Final answer
    x = 46,682.55

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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.