Home / 45,131.88-67,697.62-18,490.22

Finding the Fourth Proportional to 45,131.88, 67,697.62 and 18,490.22

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Solution

The fourth proportional to 45,131.88, 67,697.62 and 18,490.22 is: 27,735.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,131.88 : 67,697.62 = 18,490.22 : x
  2. Step 2: Convert to fraction form
    45,131.88/67,697.62 = 18,490.22/x
  3. Step 3: Cross multiply
    45,131.88x = 67,697.62 × 18,490.22
  4. Step 4: Simplify right side
    45,131.88x = 1,251,744,241.24
  5. Step 5: Solve for x
    x = 1,251,744,241.24/45,131.88
  6. Step 6: Final answer
    x = 27,735.25

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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.