Home / 71,861.74-99,172.26-40,030.63

Finding the Fourth Proportional to 71,861.74, 99,172.26 and 40,030.63

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Solution

The fourth proportional to 71,861.74, 99,172.26 and 40,030.63 is: 55,243.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,861.74 : 99,172.26 = 40,030.63 : x
  2. Step 2: Convert to fraction form
    71,861.74/99,172.26 = 40,030.63/x
  3. Step 3: Cross multiply
    71,861.74x = 99,172.26 × 40,030.63
  4. Step 4: Simplify right side
    71,861.74x = 3,969,928,046.32
  5. Step 5: Solve for x
    x = 3,969,928,046.32/71,861.74
  6. Step 6: Final answer
    x = 55,243.97

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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.