Home / 89,628.72-123,688.08-49,346.52

Finding the Fourth Proportional to 89,628.72, 123,688.08 and 49,346.52

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Solution

The fourth proportional to 89,628.72, 123,688.08 and 49,346.52 is: 68,098.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,628.72 : 123,688.08 = 49,346.52 : x
  2. Step 2: Convert to fraction form
    89,628.72/123,688.08 = 49,346.52/x
  3. Step 3: Cross multiply
    89,628.72x = 123,688.08 × 49,346.52
  4. Step 4: Simplify right side
    89,628.72x = 6,103,576,313.48
  5. Step 5: Solve for x
    x = 6,103,576,313.48/89,628.72
  6. Step 6: Final answer
    x = 68,098.44

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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.