Home / 88,272.49-121,816.83-47,986.33

Finding the Fourth Proportional to 88,272.49, 121,816.83 and 47,986.33

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Solution

The fourth proportional to 88,272.49, 121,816.83 and 47,986.33 is: 66,221.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,272.49 : 121,816.83 = 47,986.33 : x
  2. Step 2: Convert to fraction form
    88,272.49/121,816.83 = 47,986.33/x
  3. Step 3: Cross multiply
    88,272.49x = 121,816.83 × 47,986.33
  4. Step 4: Simplify right side
    88,272.49x = 5,845,542,437.82
  5. Step 5: Solve for x
    x = 5,845,542,437.82/88,272.49
  6. Step 6: Final answer
    x = 66,221.57

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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.