Home / 69,211.63-103,819.69-21,827.18

Finding the Fourth Proportional to 69,211.63, 103,819.69 and 21,827.18

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Solution

The fourth proportional to 69,211.63, 103,819.69 and 21,827.18 is: 32,741.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,211.63 : 103,819.69 = 21,827.18 : x
  2. Step 2: Convert to fraction form
    69,211.63/103,819.69 = 21,827.18/x
  3. Step 3: Cross multiply
    69,211.63x = 103,819.69 × 21,827.18
  4. Step 4: Simplify right side
    69,211.63x = 2,266,090,844.33
  5. Step 5: Solve for x
    x = 2,266,090,844.33/69,211.63
  6. Step 6: Final answer
    x = 32,741.47

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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.