Home / 69,032.24-103,536.21-18,431.90

Finding the Fourth Proportional to 69,032.24, 103,536.21 and 18,431.90

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Solution

The fourth proportional to 69,032.24, 103,536.21 and 18,431.90 is: 27,644.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,032.24 : 103,536.21 = 18,431.90 : x
  2. Step 2: Convert to fraction form
    69,032.24/103,536.21 = 18,431.90/x
  3. Step 3: Cross multiply
    69,032.24x = 103,536.21 × 18,431.90
  4. Step 4: Simplify right side
    69,032.24x = 1,908,369,069.10
  5. Step 5: Solve for x
    x = 1,908,369,069.10/69,032.24
  6. Step 6: Final answer
    x = 27,644.61

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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.