Home / 67,283.56-100,935.10-20,530.36

Finding the Fourth Proportional to 67,283.56, 100,935.10 and 20,530.36

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Solution

The fourth proportional to 67,283.56, 100,935.10 and 20,530.36 is: 30,798.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,283.56 : 100,935.10 = 20,530.36 : x
  2. Step 2: Convert to fraction form
    67,283.56/100,935.10 = 20,530.36/x
  3. Step 3: Cross multiply
    67,283.56x = 100,935.10 × 20,530.36
  4. Step 4: Simplify right side
    67,283.56x = 2,072,233,939.64
  5. Step 5: Solve for x
    x = 2,072,233,939.64/67,283.56
  6. Step 6: Final answer
    x = 30,798.52

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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.