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Finding the Fourth Proportional to 55,352.50, 76,378.74 and 31,476.53

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Solution

The fourth proportional to 55,352.50, 76,378.74 and 31,476.53 is: 43,433.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,352.50 : 76,378.74 = 31,476.53 : x
  2. Step 2: Convert to fraction form
    55,352.50/76,378.74 = 31,476.53/x
  3. Step 3: Cross multiply
    55,352.50x = 76,378.74 × 31,476.53
  4. Step 4: Simplify right side
    55,352.50x = 2,404,137,700.97
  5. Step 5: Solve for x
    x = 2,404,137,700.97/55,352.50
  6. Step 6: Final answer
    x = 43,433.23

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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.