Home / 80,541.66-120,812.49-30,610.02

Finding the Fourth Proportional to 80,541.66, 120,812.49 and 30,610.02

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Solution

The fourth proportional to 80,541.66, 120,812.49 and 30,610.02 is: 45,915.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,541.66 : 120,812.49 = 30,610.02 : x
  2. Step 2: Convert to fraction form
    80,541.66/120,812.49 = 30,610.02/x
  3. Step 3: Cross multiply
    80,541.66x = 120,812.49 × 30,610.02
  4. Step 4: Simplify right side
    80,541.66x = 3,698,072,735.15
  5. Step 5: Solve for x
    x = 3,698,072,735.15/80,541.66
  6. Step 6: Final answer
    x = 45,915.03

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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.