Home / 76,973.49-115,645.19-72,725.04

Finding the Fourth Proportional to 76,973.49, 115,645.19 and 72,725.04

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Solution

The fourth proportional to 76,973.49, 115,645.19 and 72,725.04 is: 109,262.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,973.49 : 115,645.19 = 72,725.04 : x
  2. Step 2: Convert to fraction form
    76,973.49/115,645.19 = 72,725.04/x
  3. Step 3: Cross multiply
    76,973.49x = 115,645.19 × 72,725.04
  4. Step 4: Simplify right side
    76,973.49x = 8,410,300,704.93
  5. Step 5: Solve for x
    x = 8,410,300,704.93/76,973.49
  6. Step 6: Final answer
    x = 109,262.30

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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.