Home / 69,213.63-103,822.69-21,829.18

Finding the Fourth Proportional to 69,213.63, 103,822.69 and 21,829.18

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Solution

The fourth proportional to 69,213.63, 103,822.69 and 21,829.18 is: 32,744.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,213.63 : 103,822.69 = 21,829.18 : x
  2. Step 2: Convert to fraction form
    69,213.63/103,822.69 = 21,829.18/x
  3. Step 3: Cross multiply
    69,213.63x = 103,822.69 × 21,829.18
  4. Step 4: Simplify right side
    69,213.63x = 2,266,364,188.09
  5. Step 5: Solve for x
    x = 2,266,364,188.09/69,213.63
  6. Step 6: Final answer
    x = 32,744.48

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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.