Home / 86,491.06-129,742.07-36,561.85

Finding the Fourth Proportional to 86,491.06, 129,742.07 and 36,561.85

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Solution

The fourth proportional to 86,491.06, 129,742.07 and 36,561.85 is: 54,845.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,491.06 : 129,742.07 = 36,561.85 : x
  2. Step 2: Convert to fraction form
    86,491.06/129,742.07 = 36,561.85/x
  3. Step 3: Cross multiply
    86,491.06x = 129,742.07 × 36,561.85
  4. Step 4: Simplify right side
    86,491.06x = 4,743,610,102.03
  5. Step 5: Solve for x
    x = 4,743,610,102.03/86,491.06
  6. Step 6: Final answer
    x = 54,845.09

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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.