Home / 45,724.32-68,580.42-20,758.62

Finding the Fourth Proportional to 45,724.32, 68,580.42 and 20,758.62

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Solution

The fourth proportional to 45,724.32, 68,580.42 and 20,758.62 is: 31,135.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,724.32 : 68,580.42 = 20,758.62 : x
  2. Step 2: Convert to fraction form
    45,724.32/68,580.42 = 20,758.62/x
  3. Step 3: Cross multiply
    45,724.32x = 68,580.42 × 20,758.62
  4. Step 4: Simplify right side
    45,724.32x = 1,423,635,188.56
  5. Step 5: Solve for x
    x = 1,423,635,188.56/45,724.32
  6. Step 6: Final answer
    x = 31,135.19

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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.