Home / 90,647.91-136,201.50-57,383.64

Finding the Fourth Proportional to 90,647.91, 136,201.50 and 57,383.64

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Solution

The fourth proportional to 90,647.91, 136,201.50 and 57,383.64 is: 86,220.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,647.91 : 136,201.50 = 57,383.64 : x
  2. Step 2: Convert to fraction form
    90,647.91/136,201.50 = 57,383.64/x
  3. Step 3: Cross multiply
    90,647.91x = 136,201.50 × 57,383.64
  4. Step 4: Simplify right side
    90,647.91x = 7,815,737,843.46
  5. Step 5: Solve for x
    x = 7,815,737,843.46/90,647.91
  6. Step 6: Final answer
    x = 86,220.83

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1.5x scale

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.