Home / 89,944.11-124,128.51-51,715.83

Finding the Fourth Proportional to 89,944.11, 124,128.51 and 51,715.83

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Solution

The fourth proportional to 89,944.11, 124,128.51 and 51,715.83 is: 71,371.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,944.11 : 124,128.51 = 51,715.83 : x
  2. Step 2: Convert to fraction form
    89,944.11/124,128.51 = 51,715.83/x
  3. Step 3: Cross multiply
    89,944.11x = 124,128.51 × 51,715.83
  4. Step 4: Simplify right side
    89,944.11x = 6,419,408,921.31
  5. Step 5: Solve for x
    x = 6,419,408,921.31/89,944.11
  6. Step 6: Final answer
    x = 71,371.09

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1.5x scale

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.