Home / 80,090.12-120,322-46,833.55

Finding the Fourth Proportional to 80,090.12, 120,322 and 46,833.55

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Solution

The fourth proportional to 80,090.12, 120,322 and 46,833.55 is: 70,359.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,090.12 : 120,322 = 46,833.55 : x
  2. Step 2: Convert to fraction form
    80,090.12/120,322 = 46,833.55/x
  3. Step 3: Cross multiply
    80,090.12x = 120,322 × 46,833.55
  4. Step 4: Simplify right side
    80,090.12x = 5,635,106,403.10
  5. Step 5: Solve for x
    x = 5,635,106,403.10/80,090.12
  6. Step 6: Final answer
    x = 70,359.57

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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.