Home / 74,128.54-111,218.92-49,267.30

Finding the Fourth Proportional to 74,128.54, 111,218.92 and 49,267.30

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Solution

The fourth proportional to 74,128.54, 111,218.92 and 49,267.30 is: 73,918.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,128.54 : 111,218.92 = 49,267.30 : x
  2. Step 2: Convert to fraction form
    74,128.54/111,218.92 = 49,267.30/x
  3. Step 3: Cross multiply
    74,128.54x = 111,218.92 × 49,267.30
  4. Step 4: Simplify right side
    74,128.54x = 5,479,455,897.32
  5. Step 5: Solve for x
    x = 5,479,455,897.32/74,128.54
  6. Step 6: Final answer
    x = 73,918.30

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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.