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Finding the Fourth Proportional to 65,230.89, 90,020.46 and 36,936.57

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Solution

The fourth proportional to 65,230.89, 90,020.46 and 36,936.57 is: 50,973.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,230.89 : 90,020.46 = 36,936.57 : x
  2. Step 2: Convert to fraction form
    65,230.89/90,020.46 = 36,936.57/x
  3. Step 3: Cross multiply
    65,230.89x = 90,020.46 × 36,936.57
  4. Step 4: Simplify right side
    65,230.89x = 3,325,047,022.22
  5. Step 5: Solve for x
    x = 3,325,047,022.22/65,230.89
  6. Step 6: Final answer
    x = 50,973.50

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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.