Home / 88,272.54-121,816.89-47,986.31

Finding the Fourth Proportional to 88,272.54, 121,816.89 and 47,986.31

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Solution

The fourth proportional to 88,272.54, 121,816.89 and 47,986.31 is: 66,221.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,272.54 : 121,816.89 = 47,986.31 : x
  2. Step 2: Convert to fraction form
    88,272.54/121,816.89 = 47,986.31/x
  3. Step 3: Cross multiply
    88,272.54x = 121,816.89 × 47,986.31
  4. Step 4: Simplify right side
    88,272.54x = 5,845,542,437.69
  5. Step 5: Solve for x
    x = 5,845,542,437.69/88,272.54
  6. Step 6: Final answer
    x = 66,221.53

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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.