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Finding the Fourth Proportional to 80,323.40, 120,495.68 and 29,715.56

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Solution

The fourth proportional to 80,323.40, 120,495.68 and 29,715.56 is: 44,577.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,323.40 : 120,495.68 = 29,715.56 : x
  2. Step 2: Convert to fraction form
    80,323.40/120,495.68 = 29,715.56/x
  3. Step 3: Cross multiply
    80,323.40x = 120,495.68 × 29,715.56
  4. Step 4: Simplify right side
    80,323.40x = 3,580,596,608.78
  5. Step 5: Solve for x
    x = 3,580,596,608.78/80,323.40
  6. Step 6: Final answer
    x = 44,577.25

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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.