Home / 76,675.10-115,023.99-39,256.34

Finding the Fourth Proportional to 76,675.10, 115,023.99 and 39,256.34

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Solution

The fourth proportional to 76,675.10, 115,023.99 and 39,256.34 is: 58,890.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,675.10 : 115,023.99 = 39,256.34 : x
  2. Step 2: Convert to fraction form
    76,675.10/115,023.99 = 39,256.34/x
  3. Step 3: Cross multiply
    76,675.10x = 115,023.99 × 39,256.34
  4. Step 4: Simplify right side
    76,675.10x = 4,515,420,859.60
  5. Step 5: Solve for x
    x = 4,515,420,859.60/76,675.10
  6. Step 6: Final answer
    x = 58,890.32

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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.