Home / 80,106.48-120,101.40-38,504.88

Finding the Fourth Proportional to 80,106.48, 120,101.40 and 38,504.88

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Solution

The fourth proportional to 80,106.48, 120,101.40 and 38,504.88 is: 57,729.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,106.48 : 120,101.40 = 38,504.88 : x
  2. Step 2: Convert to fraction form
    80,106.48/120,101.40 = 38,504.88/x
  3. Step 3: Cross multiply
    80,106.48x = 120,101.40 × 38,504.88
  4. Step 4: Simplify right side
    80,106.48x = 4,624,489,994.83
  5. Step 5: Solve for x
    x = 4,624,489,994.83/80,106.48
  6. Step 6: Final answer
    x = 57,729.29

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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.