Home / 89,999.10-135,020.51-27,669.60

Finding the Fourth Proportional to 89,999.10, 135,020.51 and 27,669.60

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Solution

The fourth proportional to 89,999.10, 135,020.51 and 27,669.60 is: 41,511.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,999.10 : 135,020.51 = 27,669.60 : x
  2. Step 2: Convert to fraction form
    89,999.10/135,020.51 = 27,669.60/x
  3. Step 3: Cross multiply
    89,999.10x = 135,020.51 × 27,669.60
  4. Step 4: Simplify right side
    89,999.10x = 3,735,962,828.39
  5. Step 5: Solve for x
    x = 3,735,962,828.39/89,999.10
  6. Step 6: Final answer
    x = 41,511.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.