Home / 89,469.40-123,457.17-49,176.58

Finding the Fourth Proportional to 89,469.40, 123,457.17 and 49,176.58

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Solution

The fourth proportional to 89,469.40, 123,457.17 and 49,176.58 is: 67,857.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,469.40 : 123,457.17 = 49,176.58 : x
  2. Step 2: Convert to fraction form
    89,469.40/123,457.17 = 49,176.58/x
  3. Step 3: Cross multiply
    89,469.40x = 123,457.17 × 49,176.58
  4. Step 4: Simplify right side
    89,469.40x = 6,071,201,397.08
  5. Step 5: Solve for x
    x = 6,071,201,397.08/89,469.40
  6. Step 6: Final answer
    x = 67,857.85

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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.