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Finding the Fourth Proportional to 75,562.92, 104,304.90 and 64,909.80

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Solution

The fourth proportional to 75,562.92, 104,304.90 and 64,909.80 is: 89,599.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,562.92 : 104,304.90 = 64,909.80 : x
  2. Step 2: Convert to fraction form
    75,562.92/104,304.90 = 64,909.80/x
  3. Step 3: Cross multiply
    75,562.92x = 104,304.90 × 64,909.80
  4. Step 4: Simplify right side
    75,562.92x = 6,770,410,198.02
  5. Step 5: Solve for x
    x = 6,770,410,198.02/75,562.92
  6. Step 6: Final answer
    x = 89,599.64

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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.