Home / 68,719.05-94,838.09-38,503.89

Finding the Fourth Proportional to 68,719.05, 94,838.09 and 38,503.89

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Solution

The fourth proportional to 68,719.05, 94,838.09 and 38,503.89 is: 53,138.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,719.05 : 94,838.09 = 38,503.89 : x
  2. Step 2: Convert to fraction form
    68,719.05/94,838.09 = 38,503.89/x
  3. Step 3: Cross multiply
    68,719.05x = 94,838.09 × 38,503.89
  4. Step 4: Simplify right side
    68,719.05x = 3,651,635,192.65
  5. Step 5: Solve for x
    x = 3,651,635,192.65/68,719.05
  6. Step 6: Final answer
    x = 53,138.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.