Home / 76,973.88-115,477.04-28,942.79

Finding the Fourth Proportional to 76,973.88, 115,477.04 and 28,942.79

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Solution

The fourth proportional to 76,973.88, 115,477.04 and 28,942.79 is: 43,420.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,973.88 : 115,477.04 = 28,942.79 : x
  2. Step 2: Convert to fraction form
    76,973.88/115,477.04 = 28,942.79/x
  3. Step 3: Cross multiply
    76,973.88x = 115,477.04 × 28,942.79
  4. Step 4: Simplify right side
    76,973.88x = 3,342,227,213.51
  5. Step 5: Solve for x
    x = 3,342,227,213.51/76,973.88
  6. Step 6: Final answer
    x = 43,420.28

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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.