Home / 51,039.30-76,568.13-21,036.84

Finding the Fourth Proportional to 51,039.30, 76,568.13 and 21,036.84

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Solution

The fourth proportional to 51,039.30, 76,568.13 and 21,036.84 is: 31,559.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,039.30 : 76,568.13 = 21,036.84 : x
  2. Step 2: Convert to fraction form
    51,039.30/76,568.13 = 21,036.84/x
  3. Step 3: Cross multiply
    51,039.30x = 76,568.13 × 21,036.84
  4. Step 4: Simplify right side
    51,039.30x = 1,610,751,499.91
  5. Step 5: Solve for x
    x = 1,610,751,499.91/51,039.30
  6. Step 6: Final answer
    x = 31,559.04

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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.