Home / 74,280.78-111,438.48-40,992.84

Finding the Fourth Proportional to 74,280.78, 111,438.48 and 40,992.84

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Solution

The fourth proportional to 74,280.78, 111,438.48 and 40,992.84 is: 61,498.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,280.78 : 111,438.48 = 40,992.84 : x
  2. Step 2: Convert to fraction form
    74,280.78/111,438.48 = 40,992.84/x
  3. Step 3: Cross multiply
    74,280.78x = 111,438.48 × 40,992.84
  4. Step 4: Simplify right side
    74,280.78x = 4,568,179,780.48
  5. Step 5: Solve for x
    x = 4,568,179,780.48/74,280.78
  6. Step 6: Final answer
    x = 61,498.81

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1.5x scale

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.