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Finding the Fourth Proportional to 73,777.40, 110,520.30 and 40,437.80

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Solution

The fourth proportional to 73,777.40, 110,520.30 and 40,437.80 is: 60,576.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,777.40 : 110,520.30 = 40,437.80 : x
  2. Step 2: Convert to fraction form
    73,777.40/110,520.30 = 40,437.80/x
  3. Step 3: Cross multiply
    73,777.40x = 110,520.30 × 40,437.80
  4. Step 4: Simplify right side
    73,777.40x = 4,469,197,787.34
  5. Step 5: Solve for x
    x = 4,469,197,787.34/73,777.40
  6. Step 6: Final answer
    x = 60,576.79

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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.