Home / 90,383.14-135,484.46-31,181.04

Finding the Fourth Proportional to 90,383.14, 135,484.46 and 31,181.04

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Solution

The fourth proportional to 90,383.14, 135,484.46 and 31,181.04 is: 46,740.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,383.14 : 135,484.46 = 31,181.04 : x
  2. Step 2: Convert to fraction form
    90,383.14/135,484.46 = 31,181.04/x
  3. Step 3: Cross multiply
    90,383.14x = 135,484.46 × 31,181.04
  4. Step 4: Simplify right side
    90,383.14x = 4,224,546,366.64
  5. Step 5: Solve for x
    x = 4,224,546,366.64/90,383.14
  6. Step 6: Final answer
    x = 46,740.42

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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.