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Finding the Fourth Proportional to 54,323.70, 81,485.55 and 47,757.30

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Solution

The fourth proportional to 54,323.70, 81,485.55 and 47,757.30 is: 71,635.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,323.70 : 81,485.55 = 47,757.30 : x
  2. Step 2: Convert to fraction form
    54,323.70/81,485.55 = 47,757.30/x
  3. Step 3: Cross multiply
    54,323.70x = 81,485.55 × 47,757.30
  4. Step 4: Simplify right side
    54,323.70x = 3,891,529,857.02
  5. Step 5: Solve for x
    x = 3,891,529,857.02/54,323.70
  6. Step 6: Final answer
    x = 71,635.95

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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.