Home / 89,675.91-123,758.36-49,389.66

Finding the Fourth Proportional to 89,675.91, 123,758.36 and 49,389.66

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Solution

The fourth proportional to 89,675.91, 123,758.36 and 49,389.66 is: 68,160.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,675.91 : 123,758.36 = 49,389.66 : x
  2. Step 2: Convert to fraction form
    89,675.91/123,758.36 = 49,389.66/x
  3. Step 3: Cross multiply
    89,675.91x = 123,758.36 × 49,389.66
  4. Step 4: Simplify right side
    89,675.91x = 6,112,383,295.95
  5. Step 5: Solve for x
    x = 6,112,383,295.95/89,675.91
  6. Step 6: Final answer
    x = 68,160.82

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1.5x scale

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.