Home / 80,300.44-120,426.36-58,051.36

Finding the Fourth Proportional to 80,300.44, 120,426.36 and 58,051.36

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Solution

The fourth proportional to 80,300.44, 120,426.36 and 58,051.36 is: 87,059.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,300.44 : 120,426.36 = 58,051.36 : x
  2. Step 2: Convert to fraction form
    80,300.44/120,426.36 = 58,051.36/x
  3. Step 3: Cross multiply
    80,300.44x = 120,426.36 × 58,051.36
  4. Step 4: Simplify right side
    80,300.44x = 6,990,913,977.85
  5. Step 5: Solve for x
    x = 6,990,913,977.85/80,300.44
  6. Step 6: Final answer
    x = 87,059.47

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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.