Home / 39,878.58-55,056.06-35,450.34

Finding the Fourth Proportional to 39,878.58, 55,056.06 and 35,450.34

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Solution

The fourth proportional to 39,878.58, 55,056.06 and 35,450.34 is: 48,942.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,878.58 : 55,056.06 = 35,450.34 : x
  2. Step 2: Convert to fraction form
    39,878.58/55,056.06 = 35,450.34/x
  3. Step 3: Cross multiply
    39,878.58x = 55,056.06 × 35,450.34
  4. Step 4: Simplify right side
    39,878.58x = 1,951,756,046.06
  5. Step 5: Solve for x
    x = 1,951,756,046.06/39,878.58
  6. Step 6: Final answer
    x = 48,942.47

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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.