Home / 89,655.24-123,719.28-49,367.40

Finding the Fourth Proportional to 89,655.24, 123,719.28 and 49,367.40

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Solution

The fourth proportional to 89,655.24, 123,719.28 and 49,367.40 is: 68,124.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,655.24 : 123,719.28 = 49,367.40 : x
  2. Step 2: Convert to fraction form
    89,655.24/123,719.28 = 49,367.40/x
  3. Step 3: Cross multiply
    89,655.24x = 123,719.28 × 49,367.40
  4. Step 4: Simplify right side
    89,655.24x = 6,107,699,183.47
  5. Step 5: Solve for x
    x = 6,107,699,183.47/89,655.24
  6. Step 6: Final answer
    x = 68,124.29

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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.