Home / 45,896.10-68,840.10-12,613.20

Finding the Fourth Proportional to 45,896.10, 68,840.10 and 12,613.20

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Solution

The fourth proportional to 45,896.10, 68,840.10 and 12,613.20 is: 18,918.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,896.10 : 68,840.10 = 12,613.20 : x
  2. Step 2: Convert to fraction form
    45,896.10/68,840.10 = 12,613.20/x
  3. Step 3: Cross multiply
    45,896.10x = 68,840.10 × 12,613.20
  4. Step 4: Simplify right side
    45,896.10x = 868,293,949.32
  5. Step 5: Solve for x
    x = 868,293,949.32/45,896.10
  6. Step 6: Final answer
    x = 18,918.69

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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.