Home / 81,191.25-112,036.23-45,380.44

Finding the Fourth Proportional to 81,191.25, 112,036.23 and 45,380.44

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Solution

The fourth proportional to 81,191.25, 112,036.23 and 45,380.44 is: 62,620.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,191.25 : 112,036.23 = 45,380.44 : x
  2. Step 2: Convert to fraction form
    81,191.25/112,036.23 = 45,380.44/x
  3. Step 3: Cross multiply
    81,191.25x = 112,036.23 × 45,380.44
  4. Step 4: Simplify right side
    81,191.25x = 5,084,253,413.34
  5. Step 5: Solve for x
    x = 5,084,253,413.34/81,191.25
  6. Step 6: Final answer
    x = 62,620.71

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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.