Home / 71,911.83-99,241.73-40,080.96

Finding the Fourth Proportional to 71,911.83, 99,241.73 and 40,080.96

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Solution

The fourth proportional to 71,911.83, 99,241.73 and 40,080.96 is: 55,313.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,911.83 : 99,241.73 = 40,080.96 : x
  2. Step 2: Convert to fraction form
    71,911.83/99,241.73 = 40,080.96/x
  3. Step 3: Cross multiply
    71,911.83x = 99,241.73 × 40,080.96
  4. Step 4: Simplify right side
    71,911.83x = 3,977,703,810.46
  5. Step 5: Solve for x
    x = 3,977,703,810.46/71,911.83
  6. Step 6: Final answer
    x = 55,313.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.