Home / 80,946.36-121,361.22-49,716

Finding the Fourth Proportional to 80,946.36, 121,361.22 and 49,716

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Solution

The fourth proportional to 80,946.36, 121,361.22 and 49,716 is: 74,538.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,946.36 : 121,361.22 = 49,716 : x
  2. Step 2: Convert to fraction form
    80,946.36/121,361.22 = 49,716/x
  3. Step 3: Cross multiply
    80,946.36x = 121,361.22 × 49,716
  4. Step 4: Simplify right side
    80,946.36x = 6,033,594,413.52
  5. Step 5: Solve for x
    x = 6,033,594,413.52/80,946.36
  6. Step 6: Final answer
    x = 74,538.18

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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.