Home / 86,371.65-129,548.97-30,201.39

Finding the Fourth Proportional to 86,371.65, 129,548.97 and 30,201.39

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Solution

The fourth proportional to 86,371.65, 129,548.97 and 30,201.39 is: 45,299.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,371.65 : 129,548.97 = 30,201.39 : x
  2. Step 2: Convert to fraction form
    86,371.65/129,548.97 = 30,201.39/x
  3. Step 3: Cross multiply
    86,371.65x = 129,548.97 × 30,201.39
  4. Step 4: Simplify right side
    86,371.65x = 3,912,558,967.07
  5. Step 5: Solve for x
    x = 3,912,558,967.07/86,371.65
  6. Step 6: Final answer
    x = 45,299.11

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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.