Home / 69,212.13-103,820.44-21,827.68

Finding the Fourth Proportional to 69,212.13, 103,820.44 and 21,827.68

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Solution

The fourth proportional to 69,212.13, 103,820.44 and 21,827.68 is: 32,742.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,212.13 : 103,820.44 = 21,827.68 : x
  2. Step 2: Convert to fraction form
    69,212.13/103,820.44 = 21,827.68/x
  3. Step 3: Cross multiply
    69,212.13x = 103,820.44 × 21,827.68
  4. Step 4: Simplify right side
    69,212.13x = 2,266,159,287.21
  5. Step 5: Solve for x
    x = 2,266,159,287.21/69,212.13
  6. Step 6: Final answer
    x = 32,742.23

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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.