Home / 45,290.49-67,909.82-18,973.05

Finding the Fourth Proportional to 45,290.49, 67,909.82 and 18,973.05

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Solution

The fourth proportional to 45,290.49, 67,909.82 and 18,973.05 is: 28,448.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,290.49 : 67,909.82 = 18,973.05 : x
  2. Step 2: Convert to fraction form
    45,290.49/67,909.82 = 18,973.05/x
  3. Step 3: Cross multiply
    45,290.49x = 67,909.82 × 18,973.05
  4. Step 4: Simplify right side
    45,290.49x = 1,288,456,315.49
  5. Step 5: Solve for x
    x = 1,288,456,315.49/45,290.49
  6. Step 6: Final answer
    x = 28,448.72

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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.