Home / 68,639.77-102,949.08-18,723.93

Finding the Fourth Proportional to 68,639.77, 102,949.08 and 18,723.93

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Solution

The fourth proportional to 68,639.77, 102,949.08 and 18,723.93 is: 28,083.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,639.77 : 102,949.08 = 18,723.93 : x
  2. Step 2: Convert to fraction form
    68,639.77/102,949.08 = 18,723.93/x
  3. Step 3: Cross multiply
    68,639.77x = 102,949.08 × 18,723.93
  4. Step 4: Simplify right side
    68,639.77x = 1,927,611,367.48
  5. Step 5: Solve for x
    x = 1,927,611,367.48/68,639.77
  6. Step 6: Final answer
    x = 28,083.01

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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.