Home / 57,317.55-85,991.26-21,779.51

Finding the Fourth Proportional to 57,317.55, 85,991.26 and 21,779.51

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Solution

The fourth proportional to 57,317.55, 85,991.26 and 21,779.51 is: 32,674.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,317.55 : 85,991.26 = 21,779.51 : x
  2. Step 2: Convert to fraction form
    57,317.55/85,991.26 = 21,779.51/x
  3. Step 3: Cross multiply
    57,317.55x = 85,991.26 × 21,779.51
  4. Step 4: Simplify right side
    57,317.55x = 1,872,847,507.08
  5. Step 5: Solve for x
    x = 1,872,847,507.08/57,317.55
  6. Step 6: Final answer
    x = 32,674.94

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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.