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Finding the Fourth Proportional to 65,857.27, 90,883.03 and 35,642.59

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Solution

The fourth proportional to 65,857.27, 90,883.03 and 35,642.59 is: 49,186.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,857.27 : 90,883.03 = 35,642.59 : x
  2. Step 2: Convert to fraction form
    65,857.27/90,883.03 = 35,642.59/x
  3. Step 3: Cross multiply
    65,857.27x = 90,883.03 × 35,642.59
  4. Step 4: Simplify right side
    65,857.27x = 3,239,306,576.25
  5. Step 5: Solve for x
    x = 3,239,306,576.25/65,857.27
  6. Step 6: Final answer
    x = 49,186.77

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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.