Home / 68,015.09-102,022.50-18,095.18

Finding the Fourth Proportional to 68,015.09, 102,022.50 and 18,095.18

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Solution

The fourth proportional to 68,015.09, 102,022.50 and 18,095.18 is: 27,142.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,015.09 : 102,022.50 = 18,095.18 : x
  2. Step 2: Convert to fraction form
    68,015.09/102,022.50 = 18,095.18/x
  3. Step 3: Cross multiply
    68,015.09x = 102,022.50 × 18,095.18
  4. Step 4: Simplify right side
    68,015.09x = 1,846,115,633.17
  5. Step 5: Solve for x
    x = 1,846,115,633.17/68,015.09
  6. Step 6: Final answer
    x = 27,142.74

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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.