Home / 45,369.12-68,053.68-12,087.44

Finding the Fourth Proportional to 45,369.12, 68,053.68 and 12,087.44

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Solution

The fourth proportional to 45,369.12, 68,053.68 and 12,087.44 is: 18,131.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,369.12 : 68,053.68 = 12,087.44 : x
  2. Step 2: Convert to fraction form
    45,369.12/68,053.68 = 12,087.44/x
  3. Step 3: Cross multiply
    45,369.12x = 68,053.68 × 12,087.44
  4. Step 4: Simplify right side
    45,369.12x = 822,594,773.78
  5. Step 5: Solve for x
    x = 822,594,773.78/45,369.12
  6. Step 6: Final answer
    x = 18,131.16

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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.