Home / 56,891.74-85,351.46-18,940.91

Finding the Fourth Proportional to 56,891.74, 85,351.46 and 18,940.91

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Solution

The fourth proportional to 56,891.74, 85,351.46 and 18,940.91 is: 28,415.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,891.74 : 85,351.46 = 18,940.91 : x
  2. Step 2: Convert to fraction form
    56,891.74/85,351.46 = 18,940.91/x
  3. Step 3: Cross multiply
    56,891.74x = 85,351.46 × 18,940.91
  4. Step 4: Simplify right side
    56,891.74x = 1,616,634,600.83
  5. Step 5: Solve for x
    x = 1,616,634,600.83/56,891.74
  6. Step 6: Final answer
    x = 28,415.98

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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.