Home / 89,705.25-123,798.92-49,419.09

Finding the Fourth Proportional to 89,705.25, 123,798.92 and 49,419.09

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Solution

The fourth proportional to 89,705.25, 123,798.92 and 49,419.09 is: 68,201.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,705.25 : 123,798.92 = 49,419.09 : x
  2. Step 2: Convert to fraction form
    89,705.25/123,798.92 = 49,419.09/x
  3. Step 3: Cross multiply
    89,705.25x = 123,798.92 × 49,419.09
  4. Step 4: Simplify right side
    89,705.25x = 6,118,029,722.29
  5. Step 5: Solve for x
    x = 6,118,029,722.29/89,705.25
  6. Step 6: Final answer
    x = 68,201.47

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1.5x scale

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.