Home / 74,284.85-111,427.52-18,880.85

Finding the Fourth Proportional to 74,284.85, 111,427.52 and 18,880.85

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Solution

The fourth proportional to 74,284.85, 111,427.52 and 18,880.85 is: 28,321.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,284.85 : 111,427.52 = 18,880.85 : x
  2. Step 2: Convert to fraction form
    74,284.85/111,427.52 = 18,880.85/x
  3. Step 3: Cross multiply
    74,284.85x = 111,427.52 × 18,880.85
  4. Step 4: Simplify right side
    74,284.85x = 2,103,846,196.59
  5. Step 5: Solve for x
    x = 2,103,846,196.59/74,284.85
  6. Step 6: Final answer
    x = 28,321.34

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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.