Home / 45,747.21-68,613.80-12,469.95

Finding the Fourth Proportional to 45,747.21, 68,613.80 and 12,469.95

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Solution

The fourth proportional to 45,747.21, 68,613.80 and 12,469.95 is: 18,703.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,747.21 : 68,613.80 = 12,469.95 : x
  2. Step 2: Convert to fraction form
    45,747.21/68,613.80 = 12,469.95/x
  3. Step 3: Cross multiply
    45,747.21x = 68,613.80 × 12,469.95
  4. Step 4: Simplify right side
    45,747.21x = 855,610,655.31
  5. Step 5: Solve for x
    x = 855,610,655.31/45,747.21
  6. Step 6: Final answer
    x = 18,703.01

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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.