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Finding the Fourth Proportional to 56,392.71, 84,591.11 and 18,954.03

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Solution

The fourth proportional to 56,392.71, 84,591.11 and 18,954.03 is: 28,431.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,392.71 : 84,591.11 = 18,954.03 : x
  2. Step 2: Convert to fraction form
    56,392.71/84,591.11 = 18,954.03/x
  3. Step 3: Cross multiply
    56,392.71x = 84,591.11 × 18,954.03
  4. Step 4: Simplify right side
    56,392.71x = 1,603,342,436.67
  5. Step 5: Solve for x
    x = 1,603,342,436.67/56,392.71
  6. Step 6: Final answer
    x = 28,431.73

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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.