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Finding the Fourth Proportional to 65,283.35, 90,090.97 and 36,989.03

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Solution

The fourth proportional to 65,283.35, 90,090.97 and 36,989.03 is: 51,044.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,283.35 : 90,090.97 = 36,989.03 : x
  2. Step 2: Convert to fraction form
    65,283.35/90,090.97 = 36,989.03/x
  3. Step 3: Cross multiply
    65,283.35x = 90,090.97 × 36,989.03
  4. Step 4: Simplify right side
    65,283.35x = 3,332,377,724.81
  5. Step 5: Solve for x
    x = 3,332,377,724.81/65,283.35
  6. Step 6: Final answer
    x = 51,044.84

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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.