Home / 84,638.06-126,942.49-25,457.84

Finding the Fourth Proportional to 84,638.06, 126,942.49 and 25,457.84

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Solution

The fourth proportional to 84,638.06, 126,942.49 and 25,457.84 is: 38,182.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,638.06 : 126,942.49 = 25,457.84 : x
  2. Step 2: Convert to fraction form
    84,638.06/126,942.49 = 25,457.84/x
  3. Step 3: Cross multiply
    84,638.06x = 126,942.49 × 25,457.84
  4. Step 4: Simplify right side
    84,638.06x = 3,231,681,599.62
  5. Step 5: Solve for x
    x = 3,231,681,599.62/84,638.06
  6. Step 6: Final answer
    x = 38,182.37

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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.