Home / 45,515.28-68,278.68-17,809.68

Finding the Fourth Proportional to 45,515.28, 68,278.68 and 17,809.68

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Solution

The fourth proportional to 45,515.28, 68,278.68 and 17,809.68 is: 26,716.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,515.28 : 68,278.68 = 17,809.68 : x
  2. Step 2: Convert to fraction form
    45,515.28/68,278.68 = 17,809.68/x
  3. Step 3: Cross multiply
    45,515.28x = 68,278.68 × 17,809.68
  4. Step 4: Simplify right side
    45,515.28x = 1,216,021,441.62
  5. Step 5: Solve for x
    x = 1,216,021,441.62/45,515.28
  6. Step 6: Final answer
    x = 26,716.77

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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.