Home / 86,241-129,362.09-32,918.60

Finding the Fourth Proportional to 86,241, 129,362.09 and 32,918.60

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Solution

The fourth proportional to 86,241, 129,362.09 and 32,918.60 is: 49,378.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,241 : 129,362.09 = 32,918.60 : x
  2. Step 2: Convert to fraction form
    86,241/129,362.09 = 32,918.60/x
  3. Step 3: Cross multiply
    86,241x = 129,362.09 × 32,918.60
  4. Step 4: Simplify right side
    86,241x = 4,258,418,895.87
  5. Step 5: Solve for x
    x = 4,258,418,895.87/86,241
  6. Step 6: Final answer
    x = 49,378.13

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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.