Home / 71,903.96-99,227.56-40,072.16

Finding the Fourth Proportional to 71,903.96, 99,227.56 and 40,072.16

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Solution

The fourth proportional to 71,903.96, 99,227.56 and 40,072.16 is: 55,299.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,903.96 : 99,227.56 = 40,072.16 : x
  2. Step 2: Convert to fraction form
    71,903.96/99,227.56 = 40,072.16/x
  3. Step 3: Cross multiply
    71,903.96x = 99,227.56 × 40,072.16
  4. Step 4: Simplify right side
    71,903.96x = 3,976,262,660.73
  5. Step 5: Solve for x
    x = 3,976,262,660.73/71,903.96
  6. Step 6: Final answer
    x = 55,299.63

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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.