Home / 77,091.90-115,643.52-32,713.62

Finding the Fourth Proportional to 77,091.90, 115,643.52 and 32,713.62

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Solution

The fourth proportional to 77,091.90, 115,643.52 and 32,713.62 is: 49,072.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,091.90 : 115,643.52 = 32,713.62 : x
  2. Step 2: Convert to fraction form
    77,091.90/115,643.52 = 32,713.62/x
  3. Step 3: Cross multiply
    77,091.90x = 115,643.52 × 32,713.62
  4. Step 4: Simplify right side
    77,091.90x = 3,783,118,168.74
  5. Step 5: Solve for x
    x = 3,783,118,168.74/77,091.90
  6. Step 6: Final answer
    x = 49,072.84

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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.