Home / 45,940.60-68,906.85-12,657.70

Finding the Fourth Proportional to 45,940.60, 68,906.85 and 12,657.70

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Solution

The fourth proportional to 45,940.60, 68,906.85 and 12,657.70 is: 18,985.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,940.60 : 68,906.85 = 12,657.70 : x
  2. Step 2: Convert to fraction form
    45,940.60/68,906.85 = 12,657.70/x
  3. Step 3: Cross multiply
    45,940.60x = 68,906.85 × 12,657.70
  4. Step 4: Simplify right side
    45,940.60x = 872,202,235.25
  5. Step 5: Solve for x
    x = 872,202,235.25/45,940.60
  6. Step 6: Final answer
    x = 18,985.43

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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.