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Finding the Fourth Proportional to 65,283.63, 90,091.52 and 36,991.23

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Solution

The fourth proportional to 65,283.63, 90,091.52 and 36,991.23 is: 51,047.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,283.63 : 90,091.52 = 36,991.23 : x
  2. Step 2: Convert to fraction form
    65,283.63/90,091.52 = 36,991.23/x
  3. Step 3: Cross multiply
    65,283.63x = 90,091.52 × 36,991.23
  4. Step 4: Simplify right side
    65,283.63x = 3,332,596,137.37
  5. Step 5: Solve for x
    x = 3,332,596,137.37/65,283.63
  6. Step 6: Final answer
    x = 51,047.96

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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.