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Finding the Fourth Proportional to 80,503.83, 120,804.89 and 50,880.87

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Solution

The fourth proportional to 80,503.83, 120,804.89 and 50,880.87 is: 76,352.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,503.83 : 120,804.89 = 50,880.87 : x
  2. Step 2: Convert to fraction form
    80,503.83/120,804.89 = 50,880.87/x
  3. Step 3: Cross multiply
    80,503.83x = 120,804.89 × 50,880.87
  4. Step 4: Simplify right side
    80,503.83x = 6,146,657,649.05
  5. Step 5: Solve for x
    x = 6,146,657,649.05/80,503.83
  6. Step 6: Final answer
    x = 76,352.36

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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.