Home / 57,779.51-86,668.97-18,339.66

Finding the Fourth Proportional to 57,779.51, 86,668.97 and 18,339.66

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Solution

The fourth proportional to 57,779.51, 86,668.97 and 18,339.66 is: 27,509.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,779.51 : 86,668.97 = 18,339.66 : x
  2. Step 2: Convert to fraction form
    57,779.51/86,668.97 = 18,339.66/x
  3. Step 3: Cross multiply
    57,779.51x = 86,668.97 × 18,339.66
  4. Step 4: Simplify right side
    57,779.51x = 1,589,479,350.65
  5. Step 5: Solve for x
    x = 1,589,479,350.65/57,779.51
  6. Step 6: Final answer
    x = 27,509.40

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1.5x scale

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.