Home / 42,519.12-63,735.12-19,161.96

Finding the Fourth Proportional to 42,519.12, 63,735.12 and 19,161.96

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Solution

The fourth proportional to 42,519.12, 63,735.12 and 19,161.96 is: 28,723.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,519.12 : 63,735.12 = 19,161.96 : x
  2. Step 2: Convert to fraction form
    42,519.12/63,735.12 = 19,161.96/x
  3. Step 3: Cross multiply
    42,519.12x = 63,735.12 × 19,161.96
  4. Step 4: Simplify right side
    42,519.12x = 1,221,289,820.04
  5. Step 5: Solve for x
    x = 1,221,289,820.04/42,519.12
  6. Step 6: Final answer
    x = 28,723.31

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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.