Home / 57,239.12-78,568.66-50,810.96

Finding the Fourth Proportional to 57,239.12, 78,568.66 and 50,810.96

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Solution

The fourth proportional to 57,239.12, 78,568.66 and 50,810.96 is: 69,745.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,239.12 : 78,568.66 = 50,810.96 : x
  2. Step 2: Convert to fraction form
    57,239.12/78,568.66 = 50,810.96/x
  3. Step 3: Cross multiply
    57,239.12x = 78,568.66 × 50,810.96
  4. Step 4: Simplify right side
    57,239.12x = 3,992,149,040.51
  5. Step 5: Solve for x
    x = 3,992,149,040.51/57,239.12
  6. Step 6: Final answer
    x = 69,745.12

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1.5x scale

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.