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Finding the Fourth Proportional to 92,855.52, 139,264.81 and 45,450.25

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Solution

The fourth proportional to 92,855.52, 139,264.81 and 45,450.25 is: 68,166.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,855.52 : 139,264.81 = 45,450.25 : x
  2. Step 2: Convert to fraction form
    92,855.52/139,264.81 = 45,450.25/x
  3. Step 3: Cross multiply
    92,855.52x = 139,264.81 × 45,450.25
  4. Step 4: Simplify right side
    92,855.52x = 6,329,619,968.91
  5. Step 5: Solve for x
    x = 6,329,619,968.91/92,855.52
  6. Step 6: Final answer
    x = 68,166.33

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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.