Home / 89,450.40-123,442.98-51,209.79

Finding the Fourth Proportional to 89,450.40, 123,442.98 and 51,209.79

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Solution

The fourth proportional to 89,450.40, 123,442.98 and 51,209.79 is: 70,670.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,450.40 : 123,442.98 = 51,209.79 : x
  2. Step 2: Convert to fraction form
    89,450.40/123,442.98 = 51,209.79/x
  3. Step 3: Cross multiply
    89,450.40x = 123,442.98 × 51,209.79
  4. Step 4: Simplify right side
    89,450.40x = 6,321,489,082.77
  5. Step 5: Solve for x
    x = 6,321,489,082.77/89,450.40
  6. Step 6: Final answer
    x = 70,670.33

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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.