Home / 40,142.64-60,252.84-19,380.72

Finding the Fourth Proportional to 40,142.64, 60,252.84 and 19,380.72

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Solution

The fourth proportional to 40,142.64, 60,252.84 and 19,380.72 is: 29,089.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,142.64 : 60,252.84 = 19,380.72 : x
  2. Step 2: Convert to fraction form
    40,142.64/60,252.84 = 19,380.72/x
  3. Step 3: Cross multiply
    40,142.64x = 60,252.84 × 19,380.72
  4. Step 4: Simplify right side
    40,142.64x = 1,167,743,421.24
  5. Step 5: Solve for x
    x = 1,167,743,421.24/40,142.64
  6. Step 6: Final answer
    x = 29,089.85

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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.