Home / 80,657.12-120,998.08-41,192.80

Finding the Fourth Proportional to 80,657.12, 120,998.08 and 41,192.80

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Solution

The fourth proportional to 80,657.12, 120,998.08 and 41,192.80 is: 61,795.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,657.12 : 120,998.08 = 41,192.80 : x
  2. Step 2: Convert to fraction form
    80,657.12/120,998.08 = 41,192.80/x
  3. Step 3: Cross multiply
    80,657.12x = 120,998.08 × 41,192.80
  4. Step 4: Simplify right side
    80,657.12x = 4,984,249,709.82
  5. Step 5: Solve for x
    x = 4,984,249,709.82/80,657.12
  6. Step 6: Final answer
    x = 61,795.53

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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.