Home / 85,321.46-127,982.25-35,388.15

Finding the Fourth Proportional to 85,321.46, 127,982.25 and 35,388.15

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Solution

The fourth proportional to 85,321.46, 127,982.25 and 35,388.15 is: 53,082.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,321.46 : 127,982.25 = 35,388.15 : x
  2. Step 2: Convert to fraction form
    85,321.46/127,982.25 = 35,388.15/x
  3. Step 3: Cross multiply
    85,321.46x = 127,982.25 × 35,388.15
  4. Step 4: Simplify right side
    85,321.46x = 4,529,054,883.40
  5. Step 5: Solve for x
    x = 4,529,054,883.40/85,321.46
  6. Step 6: Final answer
    x = 53,082.25

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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.