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Finding the Fourth Proportional to 65,158, 89,918.13 and 36,863.08

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Solution

The fourth proportional to 65,158, 89,918.13 and 36,863.08 is: 50,871.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,158 : 89,918.13 = 36,863.08 : x
  2. Step 2: Convert to fraction form
    65,158/89,918.13 = 36,863.08/x
  3. Step 3: Cross multiply
    65,158x = 89,918.13 × 36,863.08
  4. Step 4: Simplify right side
    65,158x = 3,314,659,219.64
  5. Step 5: Solve for x
    x = 3,314,659,219.64/65,158
  6. Step 6: Final answer
    x = 50,871.10

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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.