Home / 68,825.73-103,237.38-18,905.63

Finding the Fourth Proportional to 68,825.73, 103,237.38 and 18,905.63

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Solution

The fourth proportional to 68,825.73, 103,237.38 and 18,905.63 is: 28,358.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,825.73 : 103,237.38 = 18,905.63 : x
  2. Step 2: Convert to fraction form
    68,825.73/103,237.38 = 18,905.63/x
  3. Step 3: Cross multiply
    68,825.73x = 103,237.38 × 18,905.63
  4. Step 4: Simplify right side
    68,825.73x = 1,951,767,613.92
  5. Step 5: Solve for x
    x = 1,951,767,613.92/68,825.73
  6. Step 6: Final answer
    x = 28,358.11

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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.