Home / 45,512.32-68,268.16-12,680.32

Finding the Fourth Proportional to 45,512.32, 68,268.16 and 12,680.32

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Solution

The fourth proportional to 45,512.32, 68,268.16 and 12,680.32 is: 19,020.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,512.32 : 68,268.16 = 12,680.32 : x
  2. Step 2: Convert to fraction form
    45,512.32/68,268.16 = 12,680.32/x
  3. Step 3: Cross multiply
    45,512.32x = 68,268.16 × 12,680.32
  4. Step 4: Simplify right side
    45,512.32x = 865,662,114.61
  5. Step 5: Solve for x
    x = 865,662,114.61/45,512.32
  6. Step 6: Final answer
    x = 19,020.39

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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.