Home / 50,745.09-70,028.36-28,085.65

Finding the Fourth Proportional to 50,745.09, 70,028.36 and 28,085.65

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Solution

The fourth proportional to 50,745.09, 70,028.36 and 28,085.65 is: 38,758.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,745.09 : 70,028.36 = 28,085.65 : x
  2. Step 2: Convert to fraction form
    50,745.09/70,028.36 = 28,085.65/x
  3. Step 3: Cross multiply
    50,745.09x = 70,028.36 × 28,085.65
  4. Step 4: Simplify right side
    50,745.09x = 1,966,792,009.03
  5. Step 5: Solve for x
    x = 1,966,792,009.03/50,745.09
  6. Step 6: Final answer
    x = 38,758.27

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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.