Home / 68,845.04-103,259.35-18,930.21

Finding the Fourth Proportional to 68,845.04, 103,259.35 and 18,930.21

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Solution

The fourth proportional to 68,845.04, 103,259.35 and 18,930.21 is: 28,393.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,845.04 : 103,259.35 = 18,930.21 : x
  2. Step 2: Convert to fraction form
    68,845.04/103,259.35 = 18,930.21/x
  3. Step 3: Cross multiply
    68,845.04x = 103,259.35 × 18,930.21
  4. Step 4: Simplify right side
    68,845.04x = 1,954,721,179.96
  5. Step 5: Solve for x
    x = 1,954,721,179.96/68,845.04
  6. Step 6: Final answer
    x = 28,393.06

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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.