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Finding the Fourth Proportional to 45,220.32, 67,805.63 and 35,919.90

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Solution

The fourth proportional to 45,220.32, 67,805.63 and 35,919.90 is: 53,860.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,220.32 : 67,805.63 = 35,919.90 : x
  2. Step 2: Convert to fraction form
    45,220.32/67,805.63 = 35,919.90/x
  3. Step 3: Cross multiply
    45,220.32x = 67,805.63 × 35,919.90
  4. Step 4: Simplify right side
    45,220.32x = 2,435,571,449.04
  5. Step 5: Solve for x
    x = 2,435,571,449.04/45,220.32
  6. Step 6: Final answer
    x = 53,860.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.