Home / 70,633.12-105,949.58-18,042.62

Finding the Fourth Proportional to 70,633.12, 105,949.58 and 18,042.62

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Solution

The fourth proportional to 70,633.12, 105,949.58 and 18,042.62 is: 27,063.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,633.12 : 105,949.58 = 18,042.62 : x
  2. Step 2: Convert to fraction form
    70,633.12/105,949.58 = 18,042.62/x
  3. Step 3: Cross multiply
    70,633.12x = 105,949.58 × 18,042.62
  4. Step 4: Simplify right side
    70,633.12x = 1,911,608,011.10
  5. Step 5: Solve for x
    x = 1,911,608,011.10/70,633.12
  6. Step 6: Final answer
    x = 27,063.90

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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.