Home / 86,327.76-129,448.26-50,315.81

Finding the Fourth Proportional to 86,327.76, 129,448.26 and 50,315.81

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Solution

The fourth proportional to 86,327.76, 129,448.26 and 50,315.81 is: 75,448.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,327.76 : 129,448.26 = 50,315.81 : x
  2. Step 2: Convert to fraction form
    86,327.76/129,448.26 = 50,315.81/x
  3. Step 3: Cross multiply
    86,327.76x = 129,448.26 × 50,315.81
  4. Step 4: Simplify right side
    86,327.76x = 6,513,294,054.99
  5. Step 5: Solve for x
    x = 6,513,294,054.99/86,327.76
  6. Step 6: Final answer
    x = 75,448.43

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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.