Home / 40,138.64-60,246.84-19,376.72

Finding the Fourth Proportional to 40,138.64, 60,246.84 and 19,376.72

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Solution

The fourth proportional to 40,138.64, 60,246.84 and 19,376.72 is: 29,083.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,138.64 : 60,246.84 = 19,376.72 : x
  2. Step 2: Convert to fraction form
    40,138.64/60,246.84 = 19,376.72/x
  3. Step 3: Cross multiply
    40,138.64x = 60,246.84 × 19,376.72
  4. Step 4: Simplify right side
    40,138.64x = 1,167,386,149.56
  5. Step 5: Solve for x
    x = 1,167,386,149.56/40,138.64
  6. Step 6: Final answer
    x = 29,083.85

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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.