Home / 67,739.84-101,616.96-20,996.36

Finding the Fourth Proportional to 67,739.84, 101,616.96 and 20,996.36

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Solution

The fourth proportional to 67,739.84, 101,616.96 and 20,996.36 is: 31,496.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,739.84 : 101,616.96 = 20,996.36 : x
  2. Step 2: Convert to fraction form
    67,739.84/101,616.96 = 20,996.36/x
  3. Step 3: Cross multiply
    67,739.84x = 101,616.96 × 20,996.36
  4. Step 4: Simplify right side
    67,739.84x = 2,133,586,274.27
  5. Step 5: Solve for x
    x = 2,133,586,274.27/67,739.84
  6. Step 6: Final answer
    x = 31,496.77

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1.5x scale

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.