Home / 77,067.24-115,603.23-20,907.13

Finding the Fourth Proportional to 77,067.24, 115,603.23 and 20,907.13

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Solution

The fourth proportional to 77,067.24, 115,603.23 and 20,907.13 is: 31,361.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,067.24 : 115,603.23 = 20,907.13 : x
  2. Step 2: Convert to fraction form
    77,067.24/115,603.23 = 20,907.13/x
  3. Step 3: Cross multiply
    77,067.24x = 115,603.23 × 20,907.13
  4. Step 4: Simplify right side
    77,067.24x = 2,416,931,180.01
  5. Step 5: Solve for x
    x = 2,416,931,180.01/77,067.24
  6. Step 6: Final answer
    x = 31,361.33

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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.