Home / 89,281.12-123,206.88-51,554.56

Finding the Fourth Proportional to 89,281.12, 123,206.88 and 51,554.56

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Solution

The fourth proportional to 89,281.12, 123,206.88 and 51,554.56 is: 71,144.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,281.12 : 123,206.88 = 51,554.56 : x
  2. Step 2: Convert to fraction form
    89,281.12/123,206.88 = 51,554.56/x
  3. Step 3: Cross multiply
    89,281.12x = 123,206.88 × 51,554.56
  4. Step 4: Simplify right side
    89,281.12x = 6,351,876,487.37
  5. Step 5: Solve for x
    x = 6,351,876,487.37/89,281.12
  6. Step 6: Final answer
    x = 71,144.68

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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.