Home / 49,788.88-74,677.56-12,855.76

Finding the Fourth Proportional to 49,788.88, 74,677.56 and 12,855.76

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Solution

The fourth proportional to 49,788.88, 74,677.56 and 12,855.76 is: 19,282.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,788.88 : 74,677.56 = 12,855.76 : x
  2. Step 2: Convert to fraction form
    49,788.88/74,677.56 = 12,855.76/x
  3. Step 3: Cross multiply
    49,788.88x = 74,677.56 × 12,855.76
  4. Step 4: Simplify right side
    49,788.88x = 960,036,788.75
  5. Step 5: Solve for x
    x = 960,036,788.75/49,788.88
  6. Step 6: Final answer
    x = 19,282.15

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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.