Home / 53,231.88-73,465.19-39,779.78

Finding the Fourth Proportional to 53,231.88, 73,465.19 and 39,779.78

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Solution

The fourth proportional to 53,231.88, 73,465.19 and 39,779.78 is: 54,899.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,231.88 : 73,465.19 = 39,779.78 : x
  2. Step 2: Convert to fraction form
    53,231.88/73,465.19 = 39,779.78/x
  3. Step 3: Cross multiply
    53,231.88x = 73,465.19 × 39,779.78
  4. Step 4: Simplify right side
    53,231.88x = 2,922,428,529.63
  5. Step 5: Solve for x
    x = 2,922,428,529.63/53,231.88
  6. Step 6: Final answer
    x = 54,899.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.