Home / 80,830.24-121,170.63-41,300.21

Finding the Fourth Proportional to 80,830.24, 121,170.63 and 41,300.21

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Solution

The fourth proportional to 80,830.24, 121,170.63 and 41,300.21 is: 61,912.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,830.24 : 121,170.63 = 41,300.21 : x
  2. Step 2: Convert to fraction form
    80,830.24/121,170.63 = 41,300.21/x
  3. Step 3: Cross multiply
    80,830.24x = 121,170.63 × 41,300.21
  4. Step 4: Simplify right side
    80,830.24x = 5,004,372,922.63
  5. Step 5: Solve for x
    x = 5,004,372,922.63/80,830.24
  6. Step 6: Final answer
    x = 61,912.14

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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.