Home / 76,733.47-115,100.96-47,890.89

Finding the Fourth Proportional to 76,733.47, 115,100.96 and 47,890.89

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Solution

The fourth proportional to 76,733.47, 115,100.96 and 47,890.89 is: 71,836.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,733.47 : 115,100.96 = 47,890.89 : x
  2. Step 2: Convert to fraction form
    76,733.47/115,100.96 = 47,890.89/x
  3. Step 3: Cross multiply
    76,733.47x = 115,100.96 × 47,890.89
  4. Step 4: Simplify right side
    76,733.47x = 5,512,287,533.98
  5. Step 5: Solve for x
    x = 5,512,287,533.98/76,733.47
  6. Step 6: Final answer
    x = 71,836.81

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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.