Home / 68,640.77-102,950.58-18,724.93

Finding the Fourth Proportional to 68,640.77, 102,950.58 and 18,724.93

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Solution

The fourth proportional to 68,640.77, 102,950.58 and 18,724.93 is: 28,084.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,640.77 : 102,950.58 = 18,724.93 : x
  2. Step 2: Convert to fraction form
    68,640.77/102,950.58 = 18,724.93/x
  3. Step 3: Cross multiply
    68,640.77x = 102,950.58 × 18,724.93
  4. Step 4: Simplify right side
    68,640.77x = 1,927,742,403.96
  5. Step 5: Solve for x
    x = 1,927,742,403.96/68,640.77
  6. Step 6: Final answer
    x = 28,084.51

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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.