Home / 89,479.13-123,478.05-49,192.60

Finding the Fourth Proportional to 89,479.13, 123,478.05 and 49,192.60

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Solution

The fourth proportional to 89,479.13, 123,478.05 and 49,192.60 is: 67,884.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,479.13 : 123,478.05 = 49,192.60 : x
  2. Step 2: Convert to fraction form
    89,479.13/123,478.05 = 49,192.60/x
  3. Step 3: Cross multiply
    89,479.13x = 123,478.05 × 49,192.60
  4. Step 4: Simplify right side
    89,479.13x = 6,074,205,459.08
  5. Step 5: Solve for x
    x = 6,074,205,459.08/89,479.13
  6. Step 6: Final answer
    x = 67,884.05

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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.