Home / 84,181.44-126,268.08-31,586.76

Finding the Fourth Proportional to 84,181.44, 126,268.08 and 31,586.76

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Solution

The fourth proportional to 84,181.44, 126,268.08 and 31,586.76 is: 47,378.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,181.44 : 126,268.08 = 31,586.76 : x
  2. Step 2: Convert to fraction form
    84,181.44/126,268.08 = 31,586.76/x
  3. Step 3: Cross multiply
    84,181.44x = 126,268.08 × 31,586.76
  4. Step 4: Simplify right side
    84,181.44x = 3,988,399,538.62
  5. Step 5: Solve for x
    x = 3,988,399,538.62/84,181.44
  6. Step 6: Final answer
    x = 47,378.61

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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.