Home / 90,997.72-136,431.92-34,790.44

Finding the Fourth Proportional to 90,997.72, 136,431.92 and 34,790.44

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Solution

The fourth proportional to 90,997.72, 136,431.92 and 34,790.44 is: 52,160.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,997.72 : 136,431.92 = 34,790.44 : x
  2. Step 2: Convert to fraction form
    90,997.72/136,431.92 = 34,790.44/x
  3. Step 3: Cross multiply
    90,997.72x = 136,431.92 × 34,790.44
  4. Step 4: Simplify right side
    90,997.72x = 4,746,526,526.84
  5. Step 5: Solve for x
    x = 4,746,526,526.84/90,997.72
  6. Step 6: Final answer
    x = 52,160.94

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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.