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Finding the Fourth Proportional to 45,737.44, 68,559.60 and 20,795.20

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Solution

The fourth proportional to 45,737.44, 68,559.60 and 20,795.20 is: 31,171.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,737.44 : 68,559.60 = 20,795.20 : x
  2. Step 2: Convert to fraction form
    45,737.44/68,559.60 = 20,795.20/x
  3. Step 3: Cross multiply
    45,737.44x = 68,559.60 × 20,795.20
  4. Step 4: Simplify right side
    45,737.44x = 1,425,710,593.92
  5. Step 5: Solve for x
    x = 1,425,710,593.92/45,737.44
  6. Step 6: Final answer
    x = 31,171.63

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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.