Home / 89,050.16-122,819.64-57,221.84

Finding the Fourth Proportional to 89,050.16, 122,819.64 and 57,221.84

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Solution

The fourth proportional to 89,050.16, 122,819.64 and 57,221.84 is: 78,921.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,050.16 : 122,819.64 = 57,221.84 : x
  2. Step 2: Convert to fraction form
    89,050.16/122,819.64 = 57,221.84/x
  3. Step 3: Cross multiply
    89,050.16x = 122,819.64 × 57,221.84
  4. Step 4: Simplify right side
    89,050.16x = 7,027,965,788.94
  5. Step 5: Solve for x
    x = 7,027,965,788.94/89,050.16
  6. Step 6: Final answer
    x = 78,921.43

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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.