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Finding the Fourth Proportional to 77,998.82, 116,926.47 and 42,408.14

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Solution

The fourth proportional to 77,998.82, 116,926.47 and 42,408.14 is: 63,573.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,998.82 : 116,926.47 = 42,408.14 : x
  2. Step 2: Convert to fraction form
    77,998.82/116,926.47 = 42,408.14/x
  3. Step 3: Cross multiply
    77,998.82x = 116,926.47 × 42,408.14
  4. Step 4: Simplify right side
    77,998.82x = 4,958,633,524.83
  5. Step 5: Solve for x
    x = 4,958,633,524.83/77,998.82
  6. Step 6: Final answer
    x = 63,573.19

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1.5x scale

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.