Home / 74,629.98-102,996.81-55,734.30

Finding the Fourth Proportional to 74,629.98, 102,996.81 and 55,734.30

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Solution

The fourth proportional to 74,629.98, 102,996.81 and 55,734.30 is: 76,918.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,629.98 : 102,996.81 = 55,734.30 : x
  2. Step 2: Convert to fraction form
    74,629.98/102,996.81 = 55,734.30/x
  3. Step 3: Cross multiply
    74,629.98x = 102,996.81 × 55,734.30
  4. Step 4: Simplify right side
    74,629.98x = 5,740,455,107.58
  5. Step 5: Solve for x
    x = 5,740,455,107.58/74,629.98
  6. Step 6: Final answer
    x = 76,918.89

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1.5x scale

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.