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Finding the Fourth Proportional to 54,152.41, 81,220.39 and 18,619.12

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Solution

The fourth proportional to 54,152.41, 81,220.39 and 18,619.12 is: 27,925.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,152.41 : 81,220.39 = 18,619.12 : x
  2. Step 2: Convert to fraction form
    54,152.41/81,220.39 = 18,619.12/x
  3. Step 3: Cross multiply
    54,152.41x = 81,220.39 × 18,619.12
  4. Step 4: Simplify right side
    54,152.41x = 1,512,252,187.86
  5. Step 5: Solve for x
    x = 1,512,252,187.86/54,152.41
  6. Step 6: Final answer
    x = 27,925.85

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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.