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Finding the Fourth Proportional to 80,350.84, 120,526.98 and 21,194.92

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Solution

The fourth proportional to 80,350.84, 120,526.98 and 21,194.92 is: 31,792.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,350.84 : 120,526.98 = 21,194.92 : x
  2. Step 2: Convert to fraction form
    80,350.84/120,526.98 = 21,194.92/x
  3. Step 3: Cross multiply
    80,350.84x = 120,526.98 × 21,194.92
  4. Step 4: Simplify right side
    80,350.84x = 2,554,559,698.94
  5. Step 5: Solve for x
    x = 2,554,559,698.94/80,350.84
  6. Step 6: Final answer
    x = 31,792.57

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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.