Home / 51,472.20-77,208.30-21,882.60

Finding the Fourth Proportional to 51,472.20, 77,208.30 and 21,882.60

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Solution

The fourth proportional to 51,472.20, 77,208.30 and 21,882.60 is: 32,823.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,472.20 : 77,208.30 = 21,882.60 : x
  2. Step 2: Convert to fraction form
    51,472.20/77,208.30 = 21,882.60/x
  3. Step 3: Cross multiply
    51,472.20x = 77,208.30 × 21,882.60
  4. Step 4: Simplify right side
    51,472.20x = 1,689,518,345.58
  5. Step 5: Solve for x
    x = 1,689,518,345.58/51,472.20
  6. Step 6: Final answer
    x = 32,823.90

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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.