Home / 45,910.53-68,856.69-12,621.99

Finding the Fourth Proportional to 45,910.53, 68,856.69 and 12,621.99

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Solution

The fourth proportional to 45,910.53, 68,856.69 and 12,621.99 is: 18,930.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,910.53 : 68,856.69 = 12,621.99 : x
  2. Step 2: Convert to fraction form
    45,910.53/68,856.69 = 12,621.99/x
  3. Step 3: Cross multiply
    45,910.53x = 68,856.69 × 12,621.99
  4. Step 4: Simplify right side
    45,910.53x = 869,108,452.61
  5. Step 5: Solve for x
    x = 869,108,452.61/45,910.53
  6. Step 6: Final answer
    x = 18,930.48

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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.