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Finding the Fourth Proportional to 61,208.10, 91,812.15 and 36,324.90

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Solution

The fourth proportional to 61,208.10, 91,812.15 and 36,324.90 is: 54,487.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,208.10 : 91,812.15 = 36,324.90 : x
  2. Step 2: Convert to fraction form
    61,208.10/91,812.15 = 36,324.90/x
  3. Step 3: Cross multiply
    61,208.10x = 91,812.15 × 36,324.90
  4. Step 4: Simplify right side
    61,208.10x = 3,335,067,167.54
  5. Step 5: Solve for x
    x = 3,335,067,167.54/61,208.10
  6. Step 6: Final answer
    x = 54,487.35

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1.5x scale

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.