Home / 45,116.64-67,677.18-11,836.78

Finding the Fourth Proportional to 45,116.64, 67,677.18 and 11,836.78

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Solution

The fourth proportional to 45,116.64, 67,677.18 and 11,836.78 is: 17,755.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,116.64 : 67,677.18 = 11,836.78 : x
  2. Step 2: Convert to fraction form
    45,116.64/67,677.18 = 11,836.78/x
  3. Step 3: Cross multiply
    45,116.64x = 67,677.18 × 11,836.78
  4. Step 4: Simplify right side
    45,116.64x = 801,079,890.68
  5. Step 5: Solve for x
    x = 801,079,890.68/45,116.64
  6. Step 6: Final answer
    x = 17,755.75

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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.