Home / 89,383.07-123,318.38-51,115.35

Finding the Fourth Proportional to 89,383.07, 123,318.38 and 51,115.35

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Solution

The fourth proportional to 89,383.07, 123,318.38 and 51,115.35 is: 70,521.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,383.07 : 123,318.38 = 51,115.35 : x
  2. Step 2: Convert to fraction form
    89,383.07/123,318.38 = 51,115.35/x
  3. Step 3: Cross multiply
    89,383.07x = 123,318.38 × 51,115.35
  4. Step 4: Simplify right side
    89,383.07x = 6,303,461,899.56
  5. Step 5: Solve for x
    x = 6,303,461,899.56/89,383.07
  6. Step 6: Final answer
    x = 70,521.88

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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.