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Finding the Fourth Proportional to 54,139.60, 81,209.40 and 44,923.60

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Solution

The fourth proportional to 54,139.60, 81,209.40 and 44,923.60 is: 67,385.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,139.60 : 81,209.40 = 44,923.60 : x
  2. Step 2: Convert to fraction form
    54,139.60/81,209.40 = 44,923.60/x
  3. Step 3: Cross multiply
    54,139.60x = 81,209.40 × 44,923.60
  4. Step 4: Simplify right side
    54,139.60x = 3,648,218,601.84
  5. Step 5: Solve for x
    x = 3,648,218,601.84/54,139.60
  6. Step 6: Final answer
    x = 67,385.40

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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.