Home / 45,893.26-68,840.65-12,613.12

Finding the Fourth Proportional to 45,893.26, 68,840.65 and 12,613.12

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Solution

The fourth proportional to 45,893.26, 68,840.65 and 12,613.12 is: 18,919.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,893.26 : 68,840.65 = 12,613.12 : x
  2. Step 2: Convert to fraction form
    45,893.26/68,840.65 = 12,613.12/x
  3. Step 3: Cross multiply
    45,893.26x = 68,840.65 × 12,613.12
  4. Step 4: Simplify right side
    45,893.26x = 868,295,379.33
  5. Step 5: Solve for x
    x = 868,295,379.33/45,893.26
  6. Step 6: Final answer
    x = 18,919.89

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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.