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Finding the Fourth Proportional to 65,261.50, 90,060.96 and 35,453.50

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Solution

The fourth proportional to 65,261.50, 90,060.96 and 35,453.50 is: 48,925.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,261.50 : 90,060.96 = 35,453.50 : x
  2. Step 2: Convert to fraction form
    65,261.50/90,060.96 = 35,453.50/x
  3. Step 3: Cross multiply
    65,261.50x = 90,060.96 × 35,453.50
  4. Step 4: Simplify right side
    65,261.50x = 3,192,976,245.36
  5. Step 5: Solve for x
    x = 3,192,976,245.36/65,261.50
  6. Step 6: Final answer
    x = 48,925.88

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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.