Home / 81,028.22-111,824.55-45,225.20

Finding the Fourth Proportional to 81,028.22, 111,824.55 and 45,225.20

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Solution

The fourth proportional to 81,028.22, 111,824.55 and 45,225.20 is: 62,413.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,028.22 : 111,824.55 = 45,225.20 : x
  2. Step 2: Convert to fraction form
    81,028.22/111,824.55 = 45,225.20/x
  3. Step 3: Cross multiply
    81,028.22x = 111,824.55 × 45,225.20
  4. Step 4: Simplify right side
    81,028.22x = 5,057,287,918.22
  5. Step 5: Solve for x
    x = 5,057,287,918.22/81,028.22
  6. Step 6: Final answer
    x = 62,413.91

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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.