Home / 68,528.64-102,792.96-18,613.44

Finding the Fourth Proportional to 68,528.64, 102,792.96 and 18,613.44

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Solution

The fourth proportional to 68,528.64, 102,792.96 and 18,613.44 is: 27,920.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,528.64 : 102,792.96 = 18,613.44 : x
  2. Step 2: Convert to fraction form
    68,528.64/102,792.96 = 18,613.44/x
  3. Step 3: Cross multiply
    68,528.64x = 102,792.96 × 18,613.44
  4. Step 4: Simplify right side
    68,528.64x = 1,913,330,593.38
  5. Step 5: Solve for x
    x = 1,913,330,593.38/68,528.64
  6. Step 6: Final answer
    x = 27,920.16

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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.