Home / 89,457.28-123,453.32-49,172.06

Finding the Fourth Proportional to 89,457.28, 123,453.32 and 49,172.06

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Solution

The fourth proportional to 89,457.28, 123,453.32 and 49,172.06 is: 67,858.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,457.28 : 123,453.32 = 49,172.06 : x
  2. Step 2: Convert to fraction form
    89,457.28/123,453.32 = 49,172.06/x
  3. Step 3: Cross multiply
    89,457.28x = 123,453.32 × 49,172.06
  4. Step 4: Simplify right side
    89,457.28x = 6,070,454,121.01
  5. Step 5: Solve for x
    x = 6,070,454,121.01/89,457.28
  6. Step 6: Final answer
    x = 67,858.70

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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.