Home / 89,921.58-124,091.81-49,635.36

Finding the Fourth Proportional to 89,921.58, 124,091.81 and 49,635.36

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Solution

The fourth proportional to 89,921.58, 124,091.81 and 49,635.36 is: 68,496.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,921.58 : 124,091.81 = 49,635.36 : x
  2. Step 2: Convert to fraction form
    89,921.58/124,091.81 = 49,635.36/x
  3. Step 3: Cross multiply
    89,921.58x = 124,091.81 × 49,635.36
  4. Step 4: Simplify right side
    89,921.58x = 6,159,341,414.22
  5. Step 5: Solve for x
    x = 6,159,341,414.22/89,921.58
  6. Step 6: Final answer
    x = 68,496.81

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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.