Home / 74,427.80-111,447.30-70,928.60

Finding the Fourth Proportional to 74,427.80, 111,447.30 and 70,928.60

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Solution

The fourth proportional to 74,427.80, 111,447.30 and 70,928.60 is: 106,207.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,427.80 : 111,447.30 = 70,928.60 : x
  2. Step 2: Convert to fraction form
    74,427.80/111,447.30 = 70,928.60/x
  3. Step 3: Cross multiply
    74,427.80x = 111,447.30 × 70,928.60
  4. Step 4: Simplify right side
    74,427.80x = 7,904,800,962.78
  5. Step 5: Solve for x
    x = 7,904,800,962.78/74,427.80
  6. Step 6: Final answer
    x = 106,207.64

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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.