Home / 57,238.12-78,567.29-50,809.96

Finding the Fourth Proportional to 57,238.12, 78,567.29 and 50,809.96

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Solution

The fourth proportional to 57,238.12, 78,567.29 and 50,809.96 is: 69,743.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,238.12 : 78,567.29 = 50,809.96 : x
  2. Step 2: Convert to fraction form
    57,238.12/78,567.29 = 50,809.96/x
  3. Step 3: Cross multiply
    57,238.12x = 78,567.29 × 50,809.96
  4. Step 4: Simplify right side
    57,238.12x = 3,992,000,862.21
  5. Step 5: Solve for x
    x = 3,992,000,862.21/57,238.12
  6. Step 6: Final answer
    x = 69,743.75

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.