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Finding the Fourth Proportional to 65,865.06, 90,893.16 and 35,650.08

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Solution

The fourth proportional to 65,865.06, 90,893.16 and 35,650.08 is: 49,196.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,865.06 : 90,893.16 = 35,650.08 : x
  2. Step 2: Convert to fraction form
    65,865.06/90,893.16 = 35,650.08/x
  3. Step 3: Cross multiply
    65,865.06x = 90,893.16 × 35,650.08
  4. Step 4: Simplify right side
    65,865.06x = 3,240,348,425.45
  5. Step 5: Solve for x
    x = 3,240,348,425.45/65,865.06
  6. Step 6: Final answer
    x = 49,196.77

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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.