Home / 68,841.21-103,242-18,922.95

Finding the Fourth Proportional to 68,841.21, 103,242 and 18,922.95

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Solution

The fourth proportional to 68,841.21, 103,242 and 18,922.95 is: 28,378.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,841.21 : 103,242 = 18,922.95 : x
  2. Step 2: Convert to fraction form
    68,841.21/103,242 = 18,922.95/x
  3. Step 3: Cross multiply
    68,841.21x = 103,242 × 18,922.95
  4. Step 4: Simplify right side
    68,841.21x = 1,953,643,203.90
  5. Step 5: Solve for x
    x = 1,953,643,203.90/68,841.21
  6. Step 6: Final answer
    x = 28,378.98

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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.