Home / 57,779.27-86,609.43-28,160.46

Finding the Fourth Proportional to 57,779.27, 86,609.43 and 28,160.46

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Solution

The fourth proportional to 57,779.27, 86,609.43 and 28,160.46 is: 42,211.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,779.27 : 86,609.43 = 28,160.46 : x
  2. Step 2: Convert to fraction form
    57,779.27/86,609.43 = 28,160.46/x
  3. Step 3: Cross multiply
    57,779.27x = 86,609.43 × 28,160.46
  4. Step 4: Simplify right side
    57,779.27x = 2,438,961,389.14
  5. Step 5: Solve for x
    x = 2,438,961,389.14/57,779.27
  6. Step 6: Final answer
    x = 42,211.71

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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.