Home / 80,815.08-121,166.28-35,811.93

Finding the Fourth Proportional to 80,815.08, 121,166.28 and 35,811.93

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Solution

The fourth proportional to 80,815.08, 121,166.28 and 35,811.93 is: 53,692.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,815.08 : 121,166.28 = 35,811.93 : x
  2. Step 2: Convert to fraction form
    80,815.08/121,166.28 = 35,811.93/x
  3. Step 3: Cross multiply
    80,815.08x = 121,166.28 × 35,811.93
  4. Step 4: Simplify right side
    80,815.08x = 4,339,198,337.72
  5. Step 5: Solve for x
    x = 4,339,198,337.72/80,815.08
  6. Step 6: Final answer
    x = 53,692.93

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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.