Home / 81,488.75-112,460.96-47,961.23

Finding the Fourth Proportional to 81,488.75, 112,460.96 and 47,961.23

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Solution

The fourth proportional to 81,488.75, 112,460.96 and 47,961.23 is: 66,190.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,488.75 : 112,460.96 = 47,961.23 : x
  2. Step 2: Convert to fraction form
    81,488.75/112,460.96 = 47,961.23/x
  3. Step 3: Cross multiply
    81,488.75x = 112,460.96 × 47,961.23
  4. Step 4: Simplify right side
    81,488.75x = 5,393,765,968.58
  5. Step 5: Solve for x
    x = 5,393,765,968.58/81,488.75
  6. Step 6: Final answer
    x = 66,190.31

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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.