Home / 49,780.40-68,694.36-30,917.12

Finding the Fourth Proportional to 49,780.40, 68,694.36 and 30,917.12

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Solution

The fourth proportional to 49,780.40, 68,694.36 and 30,917.12 is: 42,664.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,780.40 : 68,694.36 = 30,917.12 : x
  2. Step 2: Convert to fraction form
    49,780.40/68,694.36 = 30,917.12/x
  3. Step 3: Cross multiply
    49,780.40x = 68,694.36 × 30,917.12
  4. Step 4: Simplify right side
    49,780.40x = 2,123,831,771.44
  5. Step 5: Solve for x
    x = 2,123,831,771.44/49,780.40
  6. Step 6: Final answer
    x = 42,664.02

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1.5x scale

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.