Home / 89,370.59-123,338.03-55,385.73

Finding the Fourth Proportional to 89,370.59, 123,338.03 and 55,385.73

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Solution

The fourth proportional to 89,370.59, 123,338.03 and 55,385.73 is: 76,436.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,370.59 : 123,338.03 = 55,385.73 : x
  2. Step 2: Convert to fraction form
    89,370.59/123,338.03 = 55,385.73/x
  3. Step 3: Cross multiply
    89,370.59x = 123,338.03 × 55,385.73
  4. Step 4: Simplify right side
    89,370.59x = 6,831,166,551.38
  5. Step 5: Solve for x
    x = 6,831,166,551.38/89,370.59
  6. Step 6: Final answer
    x = 76,436.41

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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.