Home / 69,129.04-103,640.28-22,369.36

Finding the Fourth Proportional to 69,129.04, 103,640.28 and 22,369.36

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Solution

The fourth proportional to 69,129.04, 103,640.28 and 22,369.36 is: 33,536.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,129.04 : 103,640.28 = 22,369.36 : x
  2. Step 2: Convert to fraction form
    69,129.04/103,640.28 = 22,369.36/x
  3. Step 3: Cross multiply
    69,129.04x = 103,640.28 × 22,369.36
  4. Step 4: Simplify right side
    69,129.04x = 2,318,366,733.82
  5. Step 5: Solve for x
    x = 2,318,366,733.82/69,129.04
  6. Step 6: Final answer
    x = 33,536.80

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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.