Home / 56,147.69-77,391.50-39,800.39

Finding the Fourth Proportional to 56,147.69, 77,391.50 and 39,800.39

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Solution

The fourth proportional to 56,147.69, 77,391.50 and 39,800.39 is: 54,859.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,147.69 : 77,391.50 = 39,800.39 : x
  2. Step 2: Convert to fraction form
    56,147.69/77,391.50 = 39,800.39/x
  3. Step 3: Cross multiply
    56,147.69x = 77,391.50 × 39,800.39
  4. Step 4: Simplify right side
    56,147.69x = 3,080,211,296.73
  5. Step 5: Solve for x
    x = 3,080,211,296.73/56,147.69
  6. Step 6: Final answer
    x = 54,859.09

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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.