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Finding the Fourth Proportional to 65,630.96, 90,570.84 and 35,822.96

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Solution

The fourth proportional to 65,630.96, 90,570.84 and 35,822.96 is: 49,435.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,630.96 : 90,570.84 = 35,822.96 : x
  2. Step 2: Convert to fraction form
    65,630.96/90,570.84 = 35,822.96/x
  3. Step 3: Cross multiply
    65,630.96x = 90,570.84 × 35,822.96
  4. Step 4: Simplify right side
    65,630.96x = 3,244,515,578.49
  5. Step 5: Solve for x
    x = 3,244,515,578.49/65,630.96
  6. Step 6: Final answer
    x = 49,435.75

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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.