Home / 44,615.40-66,872.22-21,208.68

Finding the Fourth Proportional to 44,615.40, 66,872.22 and 21,208.68

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Solution

The fourth proportional to 44,615.40, 66,872.22 and 21,208.68 is: 31,788.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,615.40 : 66,872.22 = 21,208.68 : x
  2. Step 2: Convert to fraction form
    44,615.40/66,872.22 = 21,208.68/x
  3. Step 3: Cross multiply
    44,615.40x = 66,872.22 × 21,208.68
  4. Step 4: Simplify right side
    44,615.40x = 1,418,271,514.87
  5. Step 5: Solve for x
    x = 1,418,271,514.87/44,615.40
  6. Step 6: Final answer
    x = 31,788.83

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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.