Home / 56,246.20-84,330.90-21,180.60

Finding the Fourth Proportional to 56,246.20, 84,330.90 and 21,180.60

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Solution

The fourth proportional to 56,246.20, 84,330.90 and 21,180.60 is: 31,756.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,246.20 : 84,330.90 = 21,180.60 : x
  2. Step 2: Convert to fraction form
    56,246.20/84,330.90 = 21,180.60/x
  3. Step 3: Cross multiply
    56,246.20x = 84,330.90 × 21,180.60
  4. Step 4: Simplify right side
    56,246.20x = 1,786,179,060.54
  5. Step 5: Solve for x
    x = 1,786,179,060.54/56,246.20
  6. Step 6: Final answer
    x = 31,756.44

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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.