Home / 89,795.91-123,915.99-49,509

Finding the Fourth Proportional to 89,795.91, 123,915.99 and 49,509

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Solution

The fourth proportional to 89,795.91, 123,915.99 and 49,509 is: 68,321.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,795.91 : 123,915.99 = 49,509 : x
  2. Step 2: Convert to fraction form
    89,795.91/123,915.99 = 49,509/x
  3. Step 3: Cross multiply
    89,795.91x = 123,915.99 × 49,509
  4. Step 4: Simplify right side
    89,795.91x = 6,134,956,748.91
  5. Step 5: Solve for x
    x = 6,134,956,748.91/89,795.91
  6. Step 6: Final answer
    x = 68,321.12

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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.