Home / 45,461.35-68,190.90-12,181.38

Finding the Fourth Proportional to 45,461.35, 68,190.90 and 12,181.38

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Solution

The fourth proportional to 45,461.35, 68,190.90 and 12,181.38 is: 18,271.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,461.35 : 68,190.90 = 12,181.38 : x
  2. Step 2: Convert to fraction form
    45,461.35/68,190.90 = 12,181.38/x
  3. Step 3: Cross multiply
    45,461.35x = 68,190.90 × 12,181.38
  4. Step 4: Simplify right side
    45,461.35x = 830,659,265.44
  5. Step 5: Solve for x
    x = 830,659,265.44/45,461.35
  6. Step 6: Final answer
    x = 18,271.77

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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.