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Finding the Fourth Proportional to 54,577.59, 81,866.39 and 19,515.12

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Solution

The fourth proportional to 54,577.59, 81,866.39 and 19,515.12 is: 29,272.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,577.59 : 81,866.39 = 19,515.12 : x
  2. Step 2: Convert to fraction form
    54,577.59/81,866.39 = 19,515.12/x
  3. Step 3: Cross multiply
    54,577.59x = 81,866.39 × 19,515.12
  4. Step 4: Simplify right side
    54,577.59x = 1,597,632,327.24
  5. Step 5: Solve for x
    x = 1,597,632,327.24/54,577.59
  6. Step 6: Final answer
    x = 29,272.68

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Double scale
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Similar ratio
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1.5x scale

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.