Home / 45,395.22-68,092.84-12,115.40

Finding the Fourth Proportional to 45,395.22, 68,092.84 and 12,115.40

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Solution

The fourth proportional to 45,395.22, 68,092.84 and 12,115.40 is: 18,173.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,395.22 : 68,092.84 = 12,115.40 : x
  2. Step 2: Convert to fraction form
    45,395.22/68,092.84 = 12,115.40/x
  3. Step 3: Cross multiply
    45,395.22x = 68,092.84 × 12,115.40
  4. Step 4: Simplify right side
    45,395.22x = 824,971,993.74
  5. Step 5: Solve for x
    x = 824,971,993.74/45,395.22
  6. Step 6: Final answer
    x = 18,173.10

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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.