Home / 53,920.98-80,862.03-20,623.95

Finding the Fourth Proportional to 53,920.98, 80,862.03 and 20,623.95

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Solution

The fourth proportional to 53,920.98, 80,862.03 and 20,623.95 is: 30,928.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,920.98 : 80,862.03 = 20,623.95 : x
  2. Step 2: Convert to fraction form
    53,920.98/80,862.03 = 20,623.95/x
  3. Step 3: Cross multiply
    53,920.98x = 80,862.03 × 20,623.95
  4. Step 4: Simplify right side
    53,920.98x = 1,667,694,463.62
  5. Step 5: Solve for x
    x = 1,667,694,463.62/53,920.98
  6. Step 6: Final answer
    x = 30,928.49

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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.