Home / 71,996.65-99,354.50-40,170.94

Finding the Fourth Proportional to 71,996.65, 99,354.50 and 40,170.94

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Solution

The fourth proportional to 71,996.65, 99,354.50 and 40,170.94 is: 55,435.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,996.65 : 99,354.50 = 40,170.94 : x
  2. Step 2: Convert to fraction form
    71,996.65/99,354.50 = 40,170.94/x
  3. Step 3: Cross multiply
    71,996.65x = 99,354.50 × 40,170.94
  4. Step 4: Simplify right side
    71,996.65x = 3,991,163,359.63
  5. Step 5: Solve for x
    x = 3,991,163,359.63/71,996.65
  6. Step 6: Final answer
    x = 55,435.41

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1.5x scale

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.