Home / 89,339.30-123,288.48-49,055.68

Finding the Fourth Proportional to 89,339.30, 123,288.48 and 49,055.68

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Solution

The fourth proportional to 89,339.30, 123,288.48 and 49,055.68 is: 67,696.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,339.30 : 123,288.48 = 49,055.68 : x
  2. Step 2: Convert to fraction form
    89,339.30/123,288.48 = 49,055.68/x
  3. Step 3: Cross multiply
    89,339.30x = 123,288.48 × 49,055.68
  4. Step 4: Simplify right side
    89,339.30x = 6,048,000,222.57
  5. Step 5: Solve for x
    x = 6,048,000,222.57/89,339.30
  6. Step 6: Final answer
    x = 67,696.97

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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.