Home / 89,609.77-123,644.41-57,319.66

Finding the Fourth Proportional to 89,609.77, 123,644.41 and 57,319.66

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Solution

The fourth proportional to 89,609.77, 123,644.41 and 57,319.66 is: 79,090.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,609.77 : 123,644.41 = 57,319.66 : x
  2. Step 2: Convert to fraction form
    89,609.77/123,644.41 = 57,319.66/x
  3. Step 3: Cross multiply
    89,609.77x = 123,644.41 × 57,319.66
  4. Step 4: Simplify right side
    89,609.77x = 7,087,255,255.50
  5. Step 5: Solve for x
    x = 7,087,255,255.50/89,609.77
  6. Step 6: Final answer
    x = 79,090.21

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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.