Home / 42,770.22-64,120.68-17,828.94

Finding the Fourth Proportional to 42,770.22, 64,120.68 and 17,828.94

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Solution

The fourth proportional to 42,770.22, 64,120.68 and 17,828.94 is: 26,728.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,770.22 : 64,120.68 = 17,828.94 : x
  2. Step 2: Convert to fraction form
    42,770.22/64,120.68 = 17,828.94/x
  3. Step 3: Cross multiply
    42,770.22x = 64,120.68 × 17,828.94
  4. Step 4: Simplify right side
    42,770.22x = 1,143,203,756.48
  5. Step 5: Solve for x
    x = 1,143,203,756.48/42,770.22
  6. Step 6: Final answer
    x = 26,728.97

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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.