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Finding the Fourth Proportional to 40,617.87, 60,900.84 and 19,515.92

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Solution

The fourth proportional to 40,617.87, 60,900.84 and 19,515.92 is: 29,261.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,617.87 : 60,900.84 = 19,515.92 : x
  2. Step 2: Convert to fraction form
    40,617.87/60,900.84 = 19,515.92/x
  3. Step 3: Cross multiply
    40,617.87x = 60,900.84 × 19,515.92
  4. Step 4: Simplify right side
    40,617.87x = 1,188,535,690.05
  5. Step 5: Solve for x
    x = 1,188,535,690.05/40,617.87
  6. Step 6: Final answer
    x = 29,261.40

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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.