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Finding the Fourth Proportional to 80,525.66, 120,741.30 and 53,901.98

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Solution

The fourth proportional to 80,525.66, 120,741.30 and 53,901.98 is: 80,821.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,525.66 : 120,741.30 = 53,901.98 : x
  2. Step 2: Convert to fraction form
    80,525.66/120,741.30 = 53,901.98/x
  3. Step 3: Cross multiply
    80,525.66x = 120,741.30 × 53,901.98
  4. Step 4: Simplify right side
    80,525.66x = 6,508,195,137.77
  5. Step 5: Solve for x
    x = 6,508,195,137.77/80,525.66
  6. Step 6: Final answer
    x = 80,821.38

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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.