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Finding the Fourth Proportional to 61,641.10, 85,067.13 and 36,143.92

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Solution

The fourth proportional to 61,641.10, 85,067.13 and 36,143.92 is: 49,880.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,641.10 : 85,067.13 = 36,143.92 : x
  2. Step 2: Convert to fraction form
    61,641.10/85,067.13 = 36,143.92/x
  3. Step 3: Cross multiply
    61,641.10x = 85,067.13 × 36,143.92
  4. Step 4: Simplify right side
    61,641.10x = 3,074,659,541.35
  5. Step 5: Solve for x
    x = 3,074,659,541.35/61,641.10
  6. Step 6: Final answer
    x = 49,880.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.