Home / 45,782.46-68,654.25-20,815.02

Finding the Fourth Proportional to 45,782.46, 68,654.25 and 20,815.02

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Solution

The fourth proportional to 45,782.46, 68,654.25 and 20,815.02 is: 31,213.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,782.46 : 68,654.25 = 20,815.02 : x
  2. Step 2: Convert to fraction form
    45,782.46/68,654.25 = 20,815.02/x
  3. Step 3: Cross multiply
    45,782.46x = 68,654.25 × 20,815.02
  4. Step 4: Simplify right side
    45,782.46x = 1,429,039,586.84
  5. Step 5: Solve for x
    x = 1,429,039,586.84/45,782.46
  6. Step 6: Final answer
    x = 31,213.69

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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.