Home / 99,257.43-136,975.35-53,935.92

Finding the Fourth Proportional to 99,257.43, 136,975.35 and 53,935.92

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Solution

The fourth proportional to 99,257.43, 136,975.35 and 53,935.92 is: 74,431.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,257.43 : 136,975.35 = 53,935.92 : x
  2. Step 2: Convert to fraction form
    99,257.43/136,975.35 = 53,935.92/x
  3. Step 3: Cross multiply
    99,257.43x = 136,975.35 × 53,935.92
  4. Step 4: Simplify right side
    99,257.43x = 7,387,891,519.57
  5. Step 5: Solve for x
    x = 7,387,891,519.57/99,257.43
  6. Step 6: Final answer
    x = 74,431.62

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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.