Home / 89,823.79-123,959.91-49,538.80

Finding the Fourth Proportional to 89,823.79, 123,959.91 and 49,538.80

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Solution

The fourth proportional to 89,823.79, 123,959.91 and 49,538.80 is: 68,365.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,823.79 : 123,959.91 = 49,538.80 : x
  2. Step 2: Convert to fraction form
    89,823.79/123,959.91 = 49,538.80/x
  3. Step 3: Cross multiply
    89,823.79x = 123,959.91 × 49,538.80
  4. Step 4: Simplify right side
    89,823.79x = 6,140,825,189.51
  5. Step 5: Solve for x
    x = 6,140,825,189.51/89,823.79
  6. Step 6: Final answer
    x = 68,365.24

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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.