Home / 89,399.64-123,354.03-51,170.88

Finding the Fourth Proportional to 89,399.64, 123,354.03 and 51,170.88

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Solution

The fourth proportional to 89,399.64, 123,354.03 and 51,170.88 is: 70,605.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,399.64 : 123,354.03 = 51,170.88 : x
  2. Step 2: Convert to fraction form
    89,399.64/123,354.03 = 51,170.88/x
  3. Step 3: Cross multiply
    89,399.64x = 123,354.03 × 51,170.88
  4. Step 4: Simplify right side
    89,399.64x = 6,312,134,266.65
  5. Step 5: Solve for x
    x = 6,312,134,266.65/89,399.64
  6. Step 6: Final answer
    x = 70,605.81

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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.