Home / 68,000.78-93,839.20-37,785.32

Finding the Fourth Proportional to 68,000.78, 93,839.20 and 37,785.32

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Solution

The fourth proportional to 68,000.78, 93,839.20 and 37,785.32 is: 52,142.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,000.78 : 93,839.20 = 37,785.32 : x
  2. Step 2: Convert to fraction form
    68,000.78/93,839.20 = 37,785.32/x
  3. Step 3: Cross multiply
    68,000.78x = 93,839.20 × 37,785.32
  4. Step 4: Simplify right side
    68,000.78x = 3,545,743,636.88
  5. Step 5: Solve for x
    x = 3,545,743,636.88/68,000.78
  6. Step 6: Final answer
    x = 52,142.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.