Home / 91,181.70-136,779.12-35,021.84

Finding the Fourth Proportional to 91,181.70, 136,779.12 and 35,021.84

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Solution

The fourth proportional to 91,181.70, 136,779.12 and 35,021.84 is: 52,535.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,181.70 : 136,779.12 = 35,021.84 : x
  2. Step 2: Convert to fraction form
    91,181.70/136,779.12 = 35,021.84/x
  3. Step 3: Cross multiply
    91,181.70x = 136,779.12 × 35,021.84
  4. Step 4: Simplify right side
    91,181.70x = 4,790,255,772.09
  5. Step 5: Solve for x
    x = 4,790,255,772.09/91,181.70
  6. Step 6: Final answer
    x = 52,535.28

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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.