Home / 45,100.28-67,648.82-11,820.08

Finding the Fourth Proportional to 45,100.28, 67,648.82 and 11,820.08

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Solution

The fourth proportional to 45,100.28, 67,648.82 and 11,820.08 is: 17,729.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,100.28 : 67,648.82 = 11,820.08 : x
  2. Step 2: Convert to fraction form
    45,100.28/67,648.82 = 11,820.08/x
  3. Step 3: Cross multiply
    45,100.28x = 67,648.82 × 11,820.08
  4. Step 4: Simplify right side
    45,100.28x = 799,614,464.31
  5. Step 5: Solve for x
    x = 799,614,464.31/45,100.28
  6. Step 6: Final answer
    x = 17,729.70

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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.