Home / 45,820.14-68,714.84-20,503.79

Finding the Fourth Proportional to 45,820.14, 68,714.84 and 20,503.79

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Solution

The fourth proportional to 45,820.14, 68,714.84 and 20,503.79 is: 30,748.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,820.14 : 68,714.84 = 20,503.79 : x
  2. Step 2: Convert to fraction form
    45,820.14/68,714.84 = 20,503.79/x
  3. Step 3: Cross multiply
    45,820.14x = 68,714.84 × 20,503.79
  4. Step 4: Simplify right side
    45,820.14x = 1,408,914,546.72
  5. Step 5: Solve for x
    x = 1,408,914,546.72/45,820.14
  6. Step 6: Final answer
    x = 30,748.80

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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.