Home / 80,534.21-120,710.16-41,007.83

Finding the Fourth Proportional to 80,534.21, 120,710.16 and 41,007.83

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Solution

The fourth proportional to 80,534.21, 120,710.16 and 41,007.83 is: 61,465.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,534.21 : 120,710.16 = 41,007.83 : x
  2. Step 2: Convert to fraction form
    80,534.21/120,710.16 = 41,007.83/x
  3. Step 3: Cross multiply
    80,534.21x = 120,710.16 × 41,007.83
  4. Step 4: Simplify right side
    80,534.21x = 4,950,061,117.00
  5. Step 5: Solve for x
    x = 4,950,061,117.00/80,534.21
  6. Step 6: Final answer
    x = 61,465.33

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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.