Home / 89,658.96-123,730.28-49,376.48

Finding the Fourth Proportional to 89,658.96, 123,730.28 and 49,376.48

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Solution

The fourth proportional to 89,658.96, 123,730.28 and 49,376.48 is: 68,140.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,658.96 : 123,730.28 = 49,376.48 : x
  2. Step 2: Convert to fraction form
    89,658.96/123,730.28 = 49,376.48/x
  3. Step 3: Cross multiply
    89,658.96x = 123,730.28 × 49,376.48
  4. Step 4: Simplify right side
    89,658.96x = 6,109,364,830.28
  5. Step 5: Solve for x
    x = 6,109,364,830.28/89,658.96
  6. Step 6: Final answer
    x = 68,140.04

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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.