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Finding the Fourth Proportional to 65,228.87, 90,014.53 and 36,548.18

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Solution

The fourth proportional to 65,228.87, 90,014.53 and 36,548.18 is: 50,435.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,228.87 : 90,014.53 = 36,548.18 : x
  2. Step 2: Convert to fraction form
    65,228.87/90,014.53 = 36,548.18/x
  3. Step 3: Cross multiply
    65,228.87x = 90,014.53 × 36,548.18
  4. Step 4: Simplify right side
    65,228.87x = 3,289,867,245.06
  5. Step 5: Solve for x
    x = 3,289,867,245.06/65,228.87
  6. Step 6: Final answer
    x = 50,435.75

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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.