Home / 45,380.41-68,073.86-12,100.30

Finding the Fourth Proportional to 45,380.41, 68,073.86 and 12,100.30

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Solution

The fourth proportional to 45,380.41, 68,073.86 and 12,100.30 is: 18,151.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,380.41 : 68,073.86 = 12,100.30 : x
  2. Step 2: Convert to fraction form
    45,380.41/68,073.86 = 12,100.30/x
  3. Step 3: Cross multiply
    45,380.41x = 68,073.86 × 12,100.30
  4. Step 4: Simplify right side
    45,380.41x = 823,714,128.16
  5. Step 5: Solve for x
    x = 823,714,128.16/45,380.41
  6. Step 6: Final answer
    x = 18,151.32

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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.