Home / 51,270.52-76,890.66-21,687.70

Finding the Fourth Proportional to 51,270.52, 76,890.66 and 21,687.70

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Solution

The fourth proportional to 51,270.52, 76,890.66 and 21,687.70 is: 32,525.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,270.52 : 76,890.66 = 21,687.70 : x
  2. Step 2: Convert to fraction form
    51,270.52/76,890.66 = 21,687.70/x
  3. Step 3: Cross multiply
    51,270.52x = 76,890.66 × 21,687.70
  4. Step 4: Simplify right side
    51,270.52x = 1,667,581,566.88
  5. Step 5: Solve for x
    x = 1,667,581,566.88/51,270.52
  6. Step 6: Final answer
    x = 32,525.15

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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.