Home / 89,659.67-123,730.70-53,850.29

Finding the Fourth Proportional to 89,659.67, 123,730.70 and 53,850.29

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Solution

The fourth proportional to 89,659.67, 123,730.70 and 53,850.29 is: 74,313.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,659.67 : 123,730.70 = 53,850.29 : x
  2. Step 2: Convert to fraction form
    89,659.67/123,730.70 = 53,850.29/x
  3. Step 3: Cross multiply
    89,659.67x = 123,730.70 × 53,850.29
  4. Step 4: Simplify right side
    89,659.67x = 6,662,933,807.65
  5. Step 5: Solve for x
    x = 6,662,933,807.65/89,659.67
  6. Step 6: Final answer
    x = 74,313.61

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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.