Home / 81,621.42-122,416.34-22,442.01

Finding the Fourth Proportional to 81,621.42, 122,416.34 and 22,442.01

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Solution

The fourth proportional to 81,621.42, 122,416.34 and 22,442.01 is: 33,658.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,621.42 : 122,416.34 = 22,442.01 : x
  2. Step 2: Convert to fraction form
    81,621.42/122,416.34 = 22,442.01/x
  3. Step 3: Cross multiply
    81,621.42x = 122,416.34 × 22,442.01
  4. Step 4: Simplify right side
    81,621.42x = 2,747,268,614.23
  5. Step 5: Solve for x
    x = 2,747,268,614.23/81,621.42
  6. Step 6: Final answer
    x = 33,658.67

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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.