Home / 45,650.18-68,475.31-20,685.58

Finding the Fourth Proportional to 45,650.18, 68,475.31 and 20,685.58

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Solution

The fourth proportional to 45,650.18, 68,475.31 and 20,685.58 is: 31,028.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,650.18 : 68,475.31 = 20,685.58 : x
  2. Step 2: Convert to fraction form
    45,650.18/68,475.31 = 20,685.58/x
  3. Step 3: Cross multiply
    45,650.18x = 68,475.31 × 20,685.58
  4. Step 4: Simplify right side
    45,650.18x = 1,416,451,280.13
  5. Step 5: Solve for x
    x = 1,416,451,280.13/45,650.18
  6. Step 6: Final answer
    x = 31,028.38

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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.