Home / 80,375.93-120,539.28-55,575.35

Finding the Fourth Proportional to 80,375.93, 120,539.28 and 55,575.35

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Solution

The fourth proportional to 80,375.93, 120,539.28 and 55,575.35 is: 83,346.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,375.93 : 120,539.28 = 55,575.35 : x
  2. Step 2: Convert to fraction form
    80,375.93/120,539.28 = 55,575.35/x
  3. Step 3: Cross multiply
    80,375.93x = 120,539.28 × 55,575.35
  4. Step 4: Simplify right side
    80,375.93x = 6,699,012,396.87
  5. Step 5: Solve for x
    x = 6,699,012,396.87/80,375.93
  6. Step 6: Final answer
    x = 83,346.00

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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.