Home / 49,612.80-74,419.20-18,441.60

Finding the Fourth Proportional to 49,612.80, 74,419.20 and 18,441.60

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Solution

The fourth proportional to 49,612.80, 74,419.20 and 18,441.60 is: 27,662.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,612.80 : 74,419.20 = 18,441.60 : x
  2. Step 2: Convert to fraction form
    49,612.80/74,419.20 = 18,441.60/x
  3. Step 3: Cross multiply
    49,612.80x = 74,419.20 × 18,441.60
  4. Step 4: Simplify right side
    49,612.80x = 1,372,409,118.72
  5. Step 5: Solve for x
    x = 1,372,409,118.72/49,612.80
  6. Step 6: Final answer
    x = 27,662.40

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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.