Home / 50,704.15-76,056.36-20,718.39

Finding the Fourth Proportional to 50,704.15, 76,056.36 and 20,718.39

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Solution

The fourth proportional to 50,704.15, 76,056.36 and 20,718.39 is: 31,077.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,704.15 : 76,056.36 = 20,718.39 : x
  2. Step 2: Convert to fraction form
    50,704.15/76,056.36 = 20,718.39/x
  3. Step 3: Cross multiply
    50,704.15x = 76,056.36 × 20,718.39
  4. Step 4: Simplify right side
    50,704.15x = 1,575,765,339.03
  5. Step 5: Solve for x
    x = 1,575,765,339.03/50,704.15
  6. Step 6: Final answer
    x = 31,077.64

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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.