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Finding the Fourth Proportional to 40,466.76, 60,737.57 and 20,490.30

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Solution

The fourth proportional to 40,466.76, 60,737.57 and 20,490.30 is: 30,754.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,466.76 : 60,737.57 = 20,490.30 : x
  2. Step 2: Convert to fraction form
    40,466.76/60,737.57 = 20,490.30/x
  3. Step 3: Cross multiply
    40,466.76x = 60,737.57 × 20,490.30
  4. Step 4: Simplify right side
    40,466.76x = 1,244,530,928.12
  5. Step 5: Solve for x
    x = 1,244,530,928.12/40,466.76
  6. Step 6: Final answer
    x = 30,754.40

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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.