Home / 36,486.87-54,733.55-13,119.99

Finding the Fourth Proportional to 36,486.87, 54,733.55 and 13,119.99

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Solution

The fourth proportional to 36,486.87, 54,733.55 and 13,119.99 is: 19,681.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,486.87 : 54,733.55 = 13,119.99 : x
  2. Step 2: Convert to fraction form
    36,486.87/54,733.55 = 13,119.99/x
  3. Step 3: Cross multiply
    36,486.87x = 54,733.55 × 13,119.99
  4. Step 4: Simplify right side
    36,486.87x = 718,103,628.66
  5. Step 5: Solve for x
    x = 718,103,628.66/36,486.87
  6. Step 6: Final answer
    x = 19,681.15

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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.