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Finding the Fourth Proportional to 86,893.19, 130,353.84 and 26,907.57

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Solution

The fourth proportional to 86,893.19, 130,353.84 and 26,907.57 is: 40,365.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,893.19 : 130,353.84 = 26,907.57 : x
  2. Step 2: Convert to fraction form
    86,893.19/130,353.84 = 26,907.57/x
  3. Step 3: Cross multiply
    86,893.19x = 130,353.84 × 26,907.57
  4. Step 4: Simplify right side
    86,893.19x = 3,507,505,074.57
  5. Step 5: Solve for x
    x = 3,507,505,074.57/86,893.19
  6. Step 6: Final answer
    x = 40,365.71

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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.