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Finding the Fourth Proportional to 56,304.90, 77,286.84 and 49,788.71

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Solution

The fourth proportional to 56,304.90, 77,286.84 and 49,788.71 is: 68,342.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,304.90 : 77,286.84 = 49,788.71 : x
  2. Step 2: Convert to fraction form
    56,304.90/77,286.84 = 49,788.71/x
  3. Step 3: Cross multiply
    56,304.90x = 77,286.84 × 49,788.71
  4. Step 4: Simplify right side
    56,304.90x = 3,848,011,677.14
  5. Step 5: Solve for x
    x = 3,848,011,677.14/56,304.90
  6. Step 6: Final answer
    x = 68,342.39

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These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.