Home / 89,986.22-124,205-51,749.94

Finding the Fourth Proportional to 89,986.22, 124,205 and 51,749.94

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Solution

The fourth proportional to 89,986.22, 124,205 and 51,749.94 is: 71,428.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,986.22 : 124,205 = 51,749.94 : x
  2. Step 2: Convert to fraction form
    89,986.22/124,205 = 51,749.94/x
  3. Step 3: Cross multiply
    89,986.22x = 124,205 × 51,749.94
  4. Step 4: Simplify right side
    89,986.22x = 6,427,601,297.70
  5. Step 5: Solve for x
    x = 6,427,601,297.70/89,986.22
  6. Step 6: Final answer
    x = 71,428.73

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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.