Home / 45,380.40-68,073.86-12,100.29

Finding the Fourth Proportional to 45,380.40, 68,073.86 and 12,100.29

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Solution

The fourth proportional to 45,380.40, 68,073.86 and 12,100.29 is: 18,151.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,380.40 : 68,073.86 = 12,100.29 : x
  2. Step 2: Convert to fraction form
    45,380.40/68,073.86 = 12,100.29/x
  3. Step 3: Cross multiply
    45,380.40x = 68,073.86 × 12,100.29
  4. Step 4: Simplify right side
    45,380.40x = 823,713,447.42
  5. Step 5: Solve for x
    x = 823,713,447.42/45,380.40
  6. Step 6: Final answer
    x = 18,151.30

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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.