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Finding the Fourth Proportional to 65,843.10, 90,862.85 and 35,627.76

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Solution

The fourth proportional to 65,843.10, 90,862.85 and 35,627.76 is: 49,165.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,843.10 : 90,862.85 = 35,627.76 : x
  2. Step 2: Convert to fraction form
    65,843.10/90,862.85 = 35,627.76/x
  3. Step 3: Cross multiply
    65,843.10x = 90,862.85 × 35,627.76
  4. Step 4: Simplify right side
    65,843.10x = 3,237,239,634.58
  5. Step 5: Solve for x
    x = 3,237,239,634.58/65,843.10
  6. Step 6: Final answer
    x = 49,165.97

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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.