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Finding the Fourth Proportional to 85,852.40, 128,805.60 and 41,480.60

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Solution

The fourth proportional to 85,852.40, 128,805.60 and 41,480.60 is: 62,233.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,852.40 : 128,805.60 = 41,480.60 : x
  2. Step 2: Convert to fraction form
    85,852.40/128,805.60 = 41,480.60/x
  3. Step 3: Cross multiply
    85,852.40x = 128,805.60 × 41,480.60
  4. Step 4: Simplify right side
    85,852.40x = 5,342,933,571.36
  5. Step 5: Solve for x
    x = 5,342,933,571.36/85,852.40
  6. Step 6: Final answer
    x = 62,233.95

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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.