Home / 76,450.56-114,673.02-20,290.86

Finding the Fourth Proportional to 76,450.56, 114,673.02 and 20,290.86

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Solution

The fourth proportional to 76,450.56, 114,673.02 and 20,290.86 is: 30,435.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,450.56 : 114,673.02 = 20,290.86 : x
  2. Step 2: Convert to fraction form
    76,450.56/114,673.02 = 20,290.86/x
  3. Step 3: Cross multiply
    76,450.56x = 114,673.02 × 20,290.86
  4. Step 4: Simplify right side
    76,450.56x = 2,326,814,194.60
  5. Step 5: Solve for x
    x = 2,326,814,194.60/76,450.56
  6. Step 6: Final answer
    x = 30,435.54

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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.