Home / 45,581.88-68,382.74-13,992.12

Finding the Fourth Proportional to 45,581.88, 68,382.74 and 13,992.12

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Solution

The fourth proportional to 45,581.88, 68,382.74 and 13,992.12 is: 20,991.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,581.88 : 68,382.74 = 13,992.12 : x
  2. Step 2: Convert to fraction form
    45,581.88/68,382.74 = 13,992.12/x
  3. Step 3: Cross multiply
    45,581.88x = 68,382.74 × 13,992.12
  4. Step 4: Simplify right side
    45,581.88x = 956,819,504.01
  5. Step 5: Solve for x
    x = 956,819,504.01/45,581.88
  6. Step 6: Final answer
    x = 20,991.23

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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.