Home / 76,615.49-115,029.86-39,201.39

Finding the Fourth Proportional to 76,615.49, 115,029.86 and 39,201.39

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Solution

The fourth proportional to 76,615.49, 115,029.86 and 39,201.39 is: 58,856.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,615.49 : 115,029.86 = 39,201.39 : x
  2. Step 2: Convert to fraction form
    76,615.49/115,029.86 = 39,201.39/x
  3. Step 3: Cross multiply
    76,615.49x = 115,029.86 × 39,201.39
  4. Step 4: Simplify right side
    76,615.49x = 4,509,330,207.50
  5. Step 5: Solve for x
    x = 4,509,330,207.50/76,615.49
  6. Step 6: Final answer
    x = 58,856.64

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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.