Home / 109,042.20-163,611.90-49,847.40

Finding the Fourth Proportional to 109,042.20, 163,611.90 and 49,847.40

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Solution

The fourth proportional to 109,042.20, 163,611.90 and 49,847.40 is: 74,793.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,042.20 : 163,611.90 = 49,847.40 : x
  2. Step 2: Convert to fraction form
    109,042.20/163,611.90 = 49,847.40/x
  3. Step 3: Cross multiply
    109,042.20x = 163,611.90 × 49,847.40
  4. Step 4: Simplify right side
    109,042.20x = 8,155,627,824.06
  5. Step 5: Solve for x
    x = 8,155,627,824.06/109,042.20
  6. Step 6: Final answer
    x = 74,793.32

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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.