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Finding the Fourth Proportional to 55,645.57, 76,788.03 and 31,767.58

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Solution

The fourth proportional to 55,645.57, 76,788.03 and 31,767.58 is: 43,837.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,645.57 : 76,788.03 = 31,767.58 : x
  2. Step 2: Convert to fraction form
    55,645.57/76,788.03 = 31,767.58/x
  3. Step 3: Cross multiply
    55,645.57x = 76,788.03 × 31,767.58
  4. Step 4: Simplify right side
    55,645.57x = 2,439,369,886.07
  5. Step 5: Solve for x
    x = 2,439,369,886.07/55,645.57
  6. Step 6: Final answer
    x = 43,837.63

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.