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Finding the Fourth Proportional to 45,185.32, 67,733.16 and 21,451.15

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Solution

The fourth proportional to 45,185.32, 67,733.16 and 21,451.15 is: 32,155.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,185.32 : 67,733.16 = 21,451.15 : x
  2. Step 2: Convert to fraction form
    45,185.32/67,733.16 = 21,451.15/x
  3. Step 3: Cross multiply
    45,185.32x = 67,733.16 × 21,451.15
  4. Step 4: Simplify right side
    45,185.32x = 1,452,954,175.13
  5. Step 5: Solve for x
    x = 1,452,954,175.13/45,185.32
  6. Step 6: Final answer
    x = 32,155.45

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