Home / 45,531.20-68,300.16-12,251.20

Finding the Fourth Proportional to 45,531.20, 68,300.16 and 12,251.20

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Solution

The fourth proportional to 45,531.20, 68,300.16 and 12,251.20 is: 18,377.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,531.20 : 68,300.16 = 12,251.20 : x
  2. Step 2: Convert to fraction form
    45,531.20/68,300.16 = 12,251.20/x
  3. Step 3: Cross multiply
    45,531.20x = 68,300.16 × 12,251.20
  4. Step 4: Simplify right side
    45,531.20x = 836,758,920.19
  5. Step 5: Solve for x
    x = 836,758,920.19/45,531.20
  6. Step 6: Final answer
    x = 18,377.70

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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.