Home / 45,403.20-68,131.44-19,105.92

Finding the Fourth Proportional to 45,403.20, 68,131.44 and 19,105.92

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Solution

The fourth proportional to 45,403.20, 68,131.44 and 19,105.92 is: 28,670.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,403.20 : 68,131.44 = 19,105.92 : x
  2. Step 2: Convert to fraction form
    45,403.20/68,131.44 = 19,105.92/x
  3. Step 3: Cross multiply
    45,403.20x = 68,131.44 × 19,105.92
  4. Step 4: Simplify right side
    45,403.20x = 1,301,713,842.12
  5. Step 5: Solve for x
    x = 1,301,713,842.12/45,403.20
  6. Step 6: Final answer
    x = 28,670.09

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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.