Home / 81,590.90-122,383.63-33,557.85

Finding the Fourth Proportional to 81,590.90, 122,383.63 and 33,557.85

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Solution

The fourth proportional to 81,590.90, 122,383.63 and 33,557.85 is: 50,335.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,590.90 : 122,383.63 = 33,557.85 : x
  2. Step 2: Convert to fraction form
    81,590.90/122,383.63 = 33,557.85/x
  3. Step 3: Cross multiply
    81,590.90x = 122,383.63 × 33,557.85
  4. Step 4: Simplify right side
    81,590.90x = 4,106,931,634.32
  5. Step 5: Solve for x
    x = 4,106,931,634.32/81,590.90
  6. Step 6: Final answer
    x = 50,335.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.