Home / 52,350.37-78,480.19-21,165.37

Finding the Fourth Proportional to 52,350.37, 78,480.19 and 21,165.37

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Solution

The fourth proportional to 52,350.37, 78,480.19 and 21,165.37 is: 31,729.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,350.37 : 78,480.19 = 21,165.37 : x
  2. Step 2: Convert to fraction form
    52,350.37/78,480.19 = 21,165.37/x
  3. Step 3: Cross multiply
    52,350.37x = 78,480.19 × 21,165.37
  4. Step 4: Simplify right side
    52,350.37x = 1,661,062,259.02
  5. Step 5: Solve for x
    x = 1,661,062,259.02/52,350.37
  6. Step 6: Final answer
    x = 31,729.71

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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.