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Finding the Fourth Proportional to 60,745.68, 91,118.52 and 21,295.44

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Solution

The fourth proportional to 60,745.68, 91,118.52 and 21,295.44 is: 31,943.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,745.68 : 91,118.52 = 21,295.44 : x
  2. Step 2: Convert to fraction form
    60,745.68/91,118.52 = 21,295.44/x
  3. Step 3: Cross multiply
    60,745.68x = 91,118.52 × 21,295.44
  4. Step 4: Simplify right side
    60,745.68x = 1,940,408,975.55
  5. Step 5: Solve for x
    x = 1,940,408,975.55/60,745.68
  6. Step 6: Final answer
    x = 31,943.16

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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.