Home / 74,664.78-111,940.84-45,075.58

Finding the Fourth Proportional to 74,664.78, 111,940.84 and 45,075.58

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Solution

The fourth proportional to 74,664.78, 111,940.84 and 45,075.58 is: 67,579.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,664.78 : 111,940.84 = 45,075.58 : x
  2. Step 2: Convert to fraction form
    74,664.78/111,940.84 = 45,075.58/x
  3. Step 3: Cross multiply
    74,664.78x = 111,940.84 × 45,075.58
  4. Step 4: Simplify right side
    74,664.78x = 5,045,798,288.69
  5. Step 5: Solve for x
    x = 5,045,798,288.69/74,664.78
  6. Step 6: Final answer
    x = 67,579.36

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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.