Home / 80,056.06-120,019.28-33,343.90

Finding the Fourth Proportional to 80,056.06, 120,019.28 and 33,343.90

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Solution

The fourth proportional to 80,056.06, 120,019.28 and 33,343.90 is: 49,988.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,056.06 : 120,019.28 = 33,343.90 : x
  2. Step 2: Convert to fraction form
    80,056.06/120,019.28 = 33,343.90/x
  3. Step 3: Cross multiply
    80,056.06x = 120,019.28 × 33,343.90
  4. Step 4: Simplify right side
    80,056.06x = 4,001,910,870.39
  5. Step 5: Solve for x
    x = 4,001,910,870.39/80,056.06
  6. Step 6: Final answer
    x = 49,988.86

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1.5x scale

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.