Home / 51,231.34-76,854.96-21,649.30

Finding the Fourth Proportional to 51,231.34, 76,854.96 and 21,649.30

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Solution

The fourth proportional to 51,231.34, 76,854.96 and 21,649.30 is: 32,477.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,231.34 : 76,854.96 = 21,649.30 : x
  2. Step 2: Convert to fraction form
    51,231.34/76,854.96 = 21,649.30/x
  3. Step 3: Cross multiply
    51,231.34x = 76,854.96 × 21,649.30
  4. Step 4: Simplify right side
    51,231.34x = 1,663,856,085.53
  5. Step 5: Solve for x
    x = 1,663,856,085.53/51,231.34
  6. Step 6: Final answer
    x = 32,477.31

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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.