Home / 74,930.76-112,435.02-54,324.36

Finding the Fourth Proportional to 74,930.76, 112,435.02 and 54,324.36

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Solution

The fourth proportional to 74,930.76, 112,435.02 and 54,324.36 is: 81,514.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,930.76 : 112,435.02 = 54,324.36 : x
  2. Step 2: Convert to fraction form
    74,930.76/112,435.02 = 54,324.36/x
  3. Step 3: Cross multiply
    74,930.76x = 112,435.02 × 54,324.36
  4. Step 4: Simplify right side
    74,930.76x = 6,107,960,503.09
  5. Step 5: Solve for x
    x = 6,107,960,503.09/74,930.76
  6. Step 6: Final answer
    x = 81,514.73

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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.