Home / 70,918.02-106,376.70-20,998.41

Finding the Fourth Proportional to 70,918.02, 106,376.70 and 20,998.41

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Solution

The fourth proportional to 70,918.02, 106,376.70 and 20,998.41 is: 31,497.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,918.02 : 106,376.70 = 20,998.41 : x
  2. Step 2: Convert to fraction form
    70,918.02/106,376.70 = 20,998.41/x
  3. Step 3: Cross multiply
    70,918.02x = 106,376.70 × 20,998.41
  4. Step 4: Simplify right side
    70,918.02x = 2,233,741,561.05
  5. Step 5: Solve for x
    x = 2,233,741,561.05/70,918.02
  6. Step 6: Final answer
    x = 31,497.52

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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.