Home / 77,690.72-116,536.14-33,288.68

Finding the Fourth Proportional to 77,690.72, 116,536.14 and 33,288.68

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Solution

The fourth proportional to 77,690.72, 116,536.14 and 33,288.68 is: 49,933.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,690.72 : 116,536.14 = 33,288.68 : x
  2. Step 2: Convert to fraction form
    77,690.72/116,536.14 = 33,288.68/x
  3. Step 3: Cross multiply
    77,690.72x = 116,536.14 × 33,288.68
  4. Step 4: Simplify right side
    77,690.72x = 3,879,333,690.21
  5. Step 5: Solve for x
    x = 3,879,333,690.21/77,690.72
  6. Step 6: Final answer
    x = 49,933.04

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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.