Home / 65,728.41-90,705.21-37,436.73

Finding the Fourth Proportional to 65,728.41, 90,705.21 and 37,436.73

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Solution

The fourth proportional to 65,728.41, 90,705.21 and 37,436.73 is: 51,662.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,728.41 : 90,705.21 = 37,436.73 : x
  2. Step 2: Convert to fraction form
    65,728.41/90,705.21 = 37,436.73/x
  3. Step 3: Cross multiply
    65,728.41x = 90,705.21 × 37,436.73
  4. Step 4: Simplify right side
    65,728.41x = 3,395,706,456.36
  5. Step 5: Solve for x
    x = 3,395,706,456.36/65,728.41
  6. Step 6: Final answer
    x = 51,662.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.