Home / 81,861.04-122,791.59-36,829.81

Finding the Fourth Proportional to 81,861.04, 122,791.59 and 36,829.81

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Solution

The fourth proportional to 81,861.04, 122,791.59 and 36,829.81 is: 55,244.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,861.04 : 122,791.59 = 36,829.81 : x
  2. Step 2: Convert to fraction form
    81,861.04/122,791.59 = 36,829.81/x
  3. Step 3: Cross multiply
    81,861.04x = 122,791.59 × 36,829.81
  4. Step 4: Simplify right side
    81,861.04x = 4,522,390,131.19
  5. Step 5: Solve for x
    x = 4,522,390,131.19/81,861.04
  6. Step 6: Final answer
    x = 55,244.72

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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.