Home / 82,114.40-122,977.20-50,621.60

Finding the Fourth Proportional to 82,114.40, 122,977.20 and 50,621.60

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Solution

The fourth proportional to 82,114.40, 122,977.20 and 50,621.60 is: 75,812.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,114.40 : 122,977.20 = 50,621.60 : x
  2. Step 2: Convert to fraction form
    82,114.40/122,977.20 = 50,621.60/x
  3. Step 3: Cross multiply
    82,114.40x = 122,977.20 × 50,621.60
  4. Step 4: Simplify right side
    82,114.40x = 6,225,302,627.52
  5. Step 5: Solve for x
    x = 6,225,302,627.52/82,114.40
  6. Step 6: Final answer
    x = 75,812.56

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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.