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Finding the Fourth Proportional to 68,025.92, 102,040.80 and 18,777.92

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Solution

The fourth proportional to 68,025.92, 102,040.80 and 18,777.92 is: 28,167.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,025.92 : 102,040.80 = 18,777.92 : x
  2. Step 2: Convert to fraction form
    68,025.92/102,040.80 = 18,777.92/x
  3. Step 3: Cross multiply
    68,025.92x = 102,040.80 × 18,777.92
  4. Step 4: Simplify right side
    68,025.92x = 1,916,113,979.14
  5. Step 5: Solve for x
    x = 1,916,113,979.14/68,025.92
  6. Step 6: Final answer
    x = 28,167.41

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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.