Home / 68,829.69-103,238.44-21,442.80

Finding the Fourth Proportional to 68,829.69, 103,238.44 and 21,442.80

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Solution

The fourth proportional to 68,829.69, 103,238.44 and 21,442.80 is: 32,162.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,829.69 : 103,238.44 = 21,442.80 : x
  2. Step 2: Convert to fraction form
    68,829.69/103,238.44 = 21,442.80/x
  3. Step 3: Cross multiply
    68,829.69x = 103,238.44 × 21,442.80
  4. Step 4: Simplify right side
    68,829.69x = 2,213,721,221.23
  5. Step 5: Solve for x
    x = 2,213,721,221.23/68,829.69
  6. Step 6: Final answer
    x = 32,162.30

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1.5x scale

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.