Home / 68,530.64-102,719.61-28,527.57

Finding the Fourth Proportional to 68,530.64, 102,719.61 and 28,527.57

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Solution

The fourth proportional to 68,530.64, 102,719.61 and 28,527.57 is: 42,759.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,530.64 : 102,719.61 = 28,527.57 : x
  2. Step 2: Convert to fraction form
    68,530.64/102,719.61 = 28,527.57/x
  3. Step 3: Cross multiply
    68,530.64x = 102,719.61 × 28,527.57
  4. Step 4: Simplify right side
    68,530.64x = 2,930,340,864.65
  5. Step 5: Solve for x
    x = 2,930,340,864.65/68,530.64
  6. Step 6: Final answer
    x = 42,759.58

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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.