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Finding the Fourth Proportional to 65,767.79, 90,759.44 and 35,553.13

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Solution

The fourth proportional to 65,767.79, 90,759.44 and 35,553.13 is: 49,063.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,767.79 : 90,759.44 = 35,553.13 : x
  2. Step 2: Convert to fraction form
    65,767.79/90,759.44 = 35,553.13/x
  3. Step 3: Cross multiply
    65,767.79x = 90,759.44 × 35,553.13
  4. Step 4: Simplify right side
    65,767.79x = 3,226,781,831.05
  5. Step 5: Solve for x
    x = 3,226,781,831.05/65,767.79
  6. Step 6: Final answer
    x = 49,063.25

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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.