Home / 45,499.84-68,249.94-13,909.78

Finding the Fourth Proportional to 45,499.84, 68,249.94 and 13,909.78

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Solution

The fourth proportional to 45,499.84, 68,249.94 and 13,909.78 is: 20,864.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,499.84 : 68,249.94 = 13,909.78 : x
  2. Step 2: Convert to fraction form
    45,499.84/68,249.94 = 13,909.78/x
  3. Step 3: Cross multiply
    45,499.84x = 68,249.94 × 13,909.78
  4. Step 4: Simplify right side
    45,499.84x = 949,341,650.41
  5. Step 5: Solve for x
    x = 949,341,650.41/45,499.84
  6. Step 6: Final answer
    x = 20,864.73

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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.