Home / 80,524.40-120,792.94-21,360.08

Finding the Fourth Proportional to 80,524.40, 120,792.94 and 21,360.08

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Solution

The fourth proportional to 80,524.40, 120,792.94 and 21,360.08 is: 32,041.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,524.40 : 120,792.94 = 21,360.08 : x
  2. Step 2: Convert to fraction form
    80,524.40/120,792.94 = 21,360.08/x
  3. Step 3: Cross multiply
    80,524.40x = 120,792.94 × 21,360.08
  4. Step 4: Simplify right side
    80,524.40x = 2,580,146,861.84
  5. Step 5: Solve for x
    x = 2,580,146,861.84/80,524.40
  6. Step 6: Final answer
    x = 32,041.80

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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.