Home / 81,907.36-122,860.95-25,752.38

Finding the Fourth Proportional to 81,907.36, 122,860.95 and 25,752.38

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Solution

The fourth proportional to 81,907.36, 122,860.95 and 25,752.38 is: 38,628.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,907.36 : 122,860.95 = 25,752.38 : x
  2. Step 2: Convert to fraction form
    81,907.36/122,860.95 = 25,752.38/x
  3. Step 3: Cross multiply
    81,907.36x = 122,860.95 × 25,752.38
  4. Step 4: Simplify right side
    81,907.36x = 3,163,961,564.41
  5. Step 5: Solve for x
    x = 3,163,961,564.41/81,907.36
  6. Step 6: Final answer
    x = 38,628.54

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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.