Home / 45,402.60-67,974.30-40,218.60

Finding the Fourth Proportional to 45,402.60, 67,974.30 and 40,218.60

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Solution

The fourth proportional to 45,402.60, 67,974.30 and 40,218.60 is: 60,213.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,402.60 : 67,974.30 = 40,218.60 : x
  2. Step 2: Convert to fraction form
    45,402.60/67,974.30 = 40,218.60/x
  3. Step 3: Cross multiply
    45,402.60x = 67,974.30 × 40,218.60
  4. Step 4: Simplify right side
    45,402.60x = 2,733,831,181.98
  5. Step 5: Solve for x
    x = 2,733,831,181.98/45,402.60
  6. Step 6: Final answer
    x = 60,213.10

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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.