Home / 81,277.96-121,968.90-34,530.82

Finding the Fourth Proportional to 81,277.96, 121,968.90 and 34,530.82

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Solution

The fourth proportional to 81,277.96, 121,968.90 and 34,530.82 is: 51,818.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,277.96 : 121,968.90 = 34,530.82 : x
  2. Step 2: Convert to fraction form
    81,277.96/121,968.90 = 34,530.82/x
  3. Step 3: Cross multiply
    81,277.96x = 121,968.90 × 34,530.82
  4. Step 4: Simplify right side
    81,277.96x = 4,211,686,131.50
  5. Step 5: Solve for x
    x = 4,211,686,131.50/81,277.96
  6. Step 6: Final answer
    x = 51,818.31

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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.