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Finding the Fourth Proportional to 65,229.39, 90,018.39 and 36,935.07

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Solution

The fourth proportional to 65,229.39, 90,018.39 and 36,935.07 is: 50,971.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,229.39 : 90,018.39 = 36,935.07 : x
  2. Step 2: Convert to fraction form
    65,229.39/90,018.39 = 36,935.07/x
  3. Step 3: Cross multiply
    65,229.39x = 90,018.39 × 36,935.07
  4. Step 4: Simplify right side
    65,229.39x = 3,324,835,535.94
  5. Step 5: Solve for x
    x = 3,324,835,535.94/65,229.39
  6. Step 6: Final answer
    x = 50,971.43

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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.