Home / 86,331.81-129,463.68-41,945.43

Finding the Fourth Proportional to 86,331.81, 129,463.68 and 41,945.43

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Solution

The fourth proportional to 86,331.81, 129,463.68 and 41,945.43 is: 62,901.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,331.81 : 129,463.68 = 41,945.43 : x
  2. Step 2: Convert to fraction form
    86,331.81/129,463.68 = 41,945.43/x
  3. Step 3: Cross multiply
    86,331.81x = 129,463.68 × 41,945.43
  4. Step 4: Simplify right side
    86,331.81x = 5,430,409,726.98
  5. Step 5: Solve for x
    x = 5,430,409,726.98/86,331.81
  6. Step 6: Final answer
    x = 62,901.61

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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.