Home / 53,676.78-74,076.52-31,018.80

Finding the Fourth Proportional to 53,676.78, 74,076.52 and 31,018.80

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Solution

The fourth proportional to 53,676.78, 74,076.52 and 31,018.80 is: 42,807.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,676.78 : 74,076.52 = 31,018.80 : x
  2. Step 2: Convert to fraction form
    53,676.78/74,076.52 = 31,018.80/x
  3. Step 3: Cross multiply
    53,676.78x = 74,076.52 × 31,018.80
  4. Step 4: Simplify right side
    53,676.78x = 2,297,764,758.58
  5. Step 5: Solve for x
    x = 2,297,764,758.58/53,676.78
  6. Step 6: Final answer
    x = 42,807.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.