Home / 89,577.70-123,570.97-62,661.20

Finding the Fourth Proportional to 89,577.70, 123,570.97 and 62,661.20

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Solution

The fourth proportional to 89,577.70, 123,570.97 and 62,661.20 is: 86,440.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,577.70 : 123,570.97 = 62,661.20 : x
  2. Step 2: Convert to fraction form
    89,577.70/123,570.97 = 62,661.20/x
  3. Step 3: Cross multiply
    89,577.70x = 123,570.97 × 62,661.20
  4. Step 4: Simplify right side
    89,577.70x = 7,743,104,490.86
  5. Step 5: Solve for x
    x = 7,743,104,490.86/89,577.70
  6. Step 6: Final answer
    x = 86,440.09

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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.