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Finding the Fourth Proportional to 54,405.20, 81,607.80 and 50,468.60

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Solution

The fourth proportional to 54,405.20, 81,607.80 and 50,468.60 is: 75,702.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,405.20 : 81,607.80 = 50,468.60 : x
  2. Step 2: Convert to fraction form
    54,405.20/81,607.80 = 50,468.60/x
  3. Step 3: Cross multiply
    54,405.20x = 81,607.80 × 50,468.60
  4. Step 4: Simplify right side
    54,405.20x = 4,118,631,415.08
  5. Step 5: Solve for x
    x = 4,118,631,415.08/54,405.20
  6. Step 6: Final answer
    x = 75,702.90

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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.