Home / 53,869.30-80,780.49-18,320.99

Finding the Fourth Proportional to 53,869.30, 80,780.49 and 18,320.99

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Solution

The fourth proportional to 53,869.30, 80,780.49 and 18,320.99 is: 27,473.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,869.30 : 80,780.49 = 18,320.99 : x
  2. Step 2: Convert to fraction form
    53,869.30/80,780.49 = 18,320.99/x
  3. Step 3: Cross multiply
    53,869.30x = 80,780.49 × 18,320.99
  4. Step 4: Simplify right side
    53,869.30x = 1,479,978,145.58
  5. Step 5: Solve for x
    x = 1,479,978,145.58/53,869.30
  6. Step 6: Final answer
    x = 27,473.50

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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.