Home / 51,993.09-77,989.77-12,550.14

Finding the Fourth Proportional to 51,993.09, 77,989.77 and 12,550.14

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Solution

The fourth proportional to 51,993.09, 77,989.77 and 12,550.14 is: 18,825.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,993.09 : 77,989.77 = 12,550.14 : x
  2. Step 2: Convert to fraction form
    51,993.09/77,989.77 = 12,550.14/x
  3. Step 3: Cross multiply
    51,993.09x = 77,989.77 × 12,550.14
  4. Step 4: Simplify right side
    51,993.09x = 978,782,532.07
  5. Step 5: Solve for x
    x = 978,782,532.07/51,993.09
  6. Step 6: Final answer
    x = 18,825.24

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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.