Home / 86,270.87-129,419.37-27,100.98

Finding the Fourth Proportional to 86,270.87, 129,419.37 and 27,100.98

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Solution

The fourth proportional to 86,270.87, 129,419.37 and 27,100.98 is: 40,655.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,270.87 : 129,419.37 = 27,100.98 : x
  2. Step 2: Convert to fraction form
    86,270.87/129,419.37 = 27,100.98/x
  3. Step 3: Cross multiply
    86,270.87x = 129,419.37 × 27,100.98
  4. Step 4: Simplify right side
    86,270.87x = 3,507,391,757.98
  5. Step 5: Solve for x
    x = 3,507,391,757.98/86,270.87
  6. Step 6: Final answer
    x = 40,655.57

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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.