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Finding the Fourth Proportional to 86,969.85, 130,452.73 and 27,806.03

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Solution

The fourth proportional to 86,969.85, 130,452.73 and 27,806.03 is: 41,708.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,969.85 : 130,452.73 = 27,806.03 : x
  2. Step 2: Convert to fraction form
    86,969.85/130,452.73 = 27,806.03/x
  3. Step 3: Cross multiply
    86,969.85x = 130,452.73 × 27,806.03
  4. Step 4: Simplify right side
    86,969.85x = 3,627,373,025.18
  5. Step 5: Solve for x
    x = 3,627,373,025.18/86,969.85
  6. Step 6: Final answer
    x = 41,708.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.