Home / 77,690.41-116,535.62-30,976.09

Finding the Fourth Proportional to 77,690.41, 116,535.62 and 30,976.09

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Solution

The fourth proportional to 77,690.41, 116,535.62 and 30,976.09 is: 46,464.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,690.41 : 116,535.62 = 30,976.09 : x
  2. Step 2: Convert to fraction form
    77,690.41/116,535.62 = 30,976.09/x
  3. Step 3: Cross multiply
    77,690.41x = 116,535.62 × 30,976.09
  4. Step 4: Simplify right side
    77,690.41x = 3,609,817,853.33
  5. Step 5: Solve for x
    x = 3,609,817,853.33/77,690.41
  6. Step 6: Final answer
    x = 46,464.14

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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.