Home / 80,801.37-121,210.33-30,923.42

Finding the Fourth Proportional to 80,801.37, 121,210.33 and 30,923.42

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Solution

The fourth proportional to 80,801.37, 121,210.33 and 30,923.42 is: 46,388.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,801.37 : 121,210.33 = 30,923.42 : x
  2. Step 2: Convert to fraction form
    80,801.37/121,210.33 = 30,923.42/x
  3. Step 3: Cross multiply
    80,801.37x = 121,210.33 × 30,923.42
  4. Step 4: Simplify right side
    80,801.37x = 3,748,237,942.93
  5. Step 5: Solve for x
    x = 3,748,237,942.93/80,801.37
  6. Step 6: Final answer
    x = 46,388.30

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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.