Home / 45,414.60-68,237.10-40,345.80

Finding the Fourth Proportional to 45,414.60, 68,237.10 and 40,345.80

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Solution

The fourth proportional to 45,414.60, 68,237.10 and 40,345.80 is: 60,621.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,414.60 : 68,237.10 = 40,345.80 : x
  2. Step 2: Convert to fraction form
    45,414.60/68,237.10 = 40,345.80/x
  3. Step 3: Cross multiply
    45,414.60x = 68,237.10 × 40,345.80
  4. Step 4: Simplify right side
    45,414.60x = 2,753,080,389.18
  5. Step 5: Solve for x
    x = 2,753,080,389.18/45,414.60
  6. Step 6: Final answer
    x = 60,621.04

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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.