Home / 45,756.83-68,633.21-12,476.90

Finding the Fourth Proportional to 45,756.83, 68,633.21 and 12,476.90

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Solution

The fourth proportional to 45,756.83, 68,633.21 and 12,476.90 is: 18,714.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,756.83 : 68,633.21 = 12,476.90 : x
  2. Step 2: Convert to fraction form
    45,756.83/68,633.21 = 12,476.90/x
  3. Step 3: Cross multiply
    45,756.83x = 68,633.21 × 12,476.90
  4. Step 4: Simplify right side
    45,756.83x = 856,329,292.30
  5. Step 5: Solve for x
    x = 856,329,292.30/45,756.83
  6. Step 6: Final answer
    x = 18,714.79

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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.