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Finding the Fourth Proportional to 85,087.67, 127,674.55 and 35,203.56

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Solution

The fourth proportional to 85,087.67, 127,674.55 and 35,203.56 is: 52,823.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,087.67 : 127,674.55 = 35,203.56 : x
  2. Step 2: Convert to fraction form
    85,087.67/127,674.55 = 35,203.56/x
  3. Step 3: Cross multiply
    85,087.67x = 127,674.55 × 35,203.56
  4. Step 4: Simplify right side
    85,087.67x = 4,494,599,063.80
  5. Step 5: Solve for x
    x = 4,494,599,063.80/85,087.67
  6. Step 6: Final answer
    x = 52,823.16

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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.