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Finding the Fourth Proportional to 54,677.78, 82,016.67 and 13,124.78

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Solution

The fourth proportional to 54,677.78, 82,016.67 and 13,124.78 is: 19,687.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,677.78 : 82,016.67 = 13,124.78 : x
  2. Step 2: Convert to fraction form
    54,677.78/82,016.67 = 13,124.78/x
  3. Step 3: Cross multiply
    54,677.78x = 82,016.67 × 13,124.78
  4. Step 4: Simplify right side
    54,677.78x = 1,076,451,084.30
  5. Step 5: Solve for x
    x = 1,076,451,084.30/54,677.78
  6. Step 6: Final answer
    x = 19,687.17

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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.