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Finding the Fourth Proportional to 54,335.20, 81,405.60 and 44,420.80

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Solution

The fourth proportional to 54,335.20, 81,405.60 and 44,420.80 is: 66,551.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,335.20 : 81,405.60 = 44,420.80 : x
  2. Step 2: Convert to fraction form
    54,335.20/81,405.60 = 44,420.80/x
  3. Step 3: Cross multiply
    54,335.20x = 81,405.60 × 44,420.80
  4. Step 4: Simplify right side
    54,335.20x = 3,616,101,876.48
  5. Step 5: Solve for x
    x = 3,616,101,876.48/54,335.20
  6. Step 6: Final answer
    x = 66,551.74

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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.