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Finding the Fourth Proportional to 65,999.48, 91,079.78 and 35,785.26

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Solution

The fourth proportional to 65,999.48, 91,079.78 and 35,785.26 is: 49,383.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,999.48 : 91,079.78 = 35,785.26 : x
  2. Step 2: Convert to fraction form
    65,999.48/91,079.78 = 35,785.26/x
  3. Step 3: Cross multiply
    65,999.48x = 91,079.78 × 35,785.26
  4. Step 4: Simplify right side
    65,999.48x = 3,259,313,429.12
  5. Step 5: Solve for x
    x = 3,259,313,429.12/65,999.48
  6. Step 6: Final answer
    x = 49,383.93

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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.