Home / 89,784.26-123,903.08-49,499.45

Finding the Fourth Proportional to 89,784.26, 123,903.08 and 49,499.45

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Solution

The fourth proportional to 89,784.26, 123,903.08 and 49,499.45 is: 68,309.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,784.26 : 123,903.08 = 49,499.45 : x
  2. Step 2: Convert to fraction form
    89,784.26/123,903.08 = 49,499.45/x
  3. Step 3: Cross multiply
    89,784.26x = 123,903.08 × 49,499.45
  4. Step 4: Simplify right side
    89,784.26x = 6,133,133,446.29
  5. Step 5: Solve for x
    x = 6,133,133,446.29/89,784.26
  6. Step 6: Final answer
    x = 68,309.68

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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.