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Finding the Fourth Proportional to 85,047.54, 127,571.19 and 28,893.48

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Solution

The fourth proportional to 85,047.54, 127,571.19 and 28,893.48 is: 43,340.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,047.54 : 127,571.19 = 28,893.48 : x
  2. Step 2: Convert to fraction form
    85,047.54/127,571.19 = 28,893.48/x
  3. Step 3: Cross multiply
    85,047.54x = 127,571.19 × 28,893.48
  4. Step 4: Simplify right side
    85,047.54x = 3,685,975,626.84
  5. Step 5: Solve for x
    x = 3,685,975,626.84/85,047.54
  6. Step 6: Final answer
    x = 43,340.18

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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.