Home / 77,004.96-115,573.05-45,368.69

Finding the Fourth Proportional to 77,004.96, 115,573.05 and 45,368.69

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Solution

The fourth proportional to 77,004.96, 115,573.05 and 45,368.69 is: 68,091.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,004.96 : 115,573.05 = 45,368.69 : x
  2. Step 2: Convert to fraction form
    77,004.96/115,573.05 = 45,368.69/x
  3. Step 3: Cross multiply
    77,004.96x = 115,573.05 × 45,368.69
  4. Step 4: Simplify right side
    77,004.96x = 5,243,397,299.94
  5. Step 5: Solve for x
    x = 5,243,397,299.94/77,004.96
  6. Step 6: Final answer
    x = 68,091.68

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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.