Home / 49,475.20-68,276.64-28,256.80

Finding the Fourth Proportional to 49,475.20, 68,276.64 and 28,256.80

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Solution

The fourth proportional to 49,475.20, 68,276.64 and 28,256.80 is: 38,994.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,475.20 : 68,276.64 = 28,256.80 : x
  2. Step 2: Convert to fraction form
    49,475.20/68,276.64 = 28,256.80/x
  3. Step 3: Cross multiply
    49,475.20x = 68,276.64 × 28,256.80
  4. Step 4: Simplify right side
    49,475.20x = 1,929,279,361.15
  5. Step 5: Solve for x
    x = 1,929,279,361.15/49,475.20
  6. Step 6: Final answer
    x = 38,994.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.