Home / 40,142.78-60,216.09-19,383.74

Finding the Fourth Proportional to 40,142.78, 60,216.09 and 19,383.74

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Solution

The fourth proportional to 40,142.78, 60,216.09 and 19,383.74 is: 29,076.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,142.78 : 60,216.09 = 19,383.74 : x
  2. Step 2: Convert to fraction form
    40,142.78/60,216.09 = 19,383.74/x
  3. Step 3: Cross multiply
    40,142.78x = 60,216.09 × 19,383.74
  4. Step 4: Simplify right side
    40,142.78x = 1,167,213,032.38
  5. Step 5: Solve for x
    x = 1,167,213,032.38/40,142.78
  6. Step 6: Final answer
    x = 29,076.54

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1.5x scale

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.