Home / 45,954.68-68,904.32-20,649.56

Finding the Fourth Proportional to 45,954.68, 68,904.32 and 20,649.56

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Solution

The fourth proportional to 45,954.68, 68,904.32 and 20,649.56 is: 30,961.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,954.68 : 68,904.32 = 20,649.56 : x
  2. Step 2: Convert to fraction form
    45,954.68/68,904.32 = 20,649.56/x
  3. Step 3: Cross multiply
    45,954.68x = 68,904.32 × 20,649.56
  4. Step 4: Simplify right side
    45,954.68x = 1,422,843,890.10
  5. Step 5: Solve for x
    x = 1,422,843,890.10/45,954.68
  6. Step 6: Final answer
    x = 30,961.89

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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.