Home / 53,311.80-79,995.39-21,745.02

Finding the Fourth Proportional to 53,311.80, 79,995.39 and 21,745.02

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Solution

The fourth proportional to 53,311.80, 79,995.39 and 21,745.02 is: 32,628.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,311.80 : 79,995.39 = 21,745.02 : x
  2. Step 2: Convert to fraction form
    53,311.80/79,995.39 = 21,745.02/x
  3. Step 3: Cross multiply
    53,311.80x = 79,995.39 × 21,745.02
  4. Step 4: Simplify right side
    53,311.80x = 1,739,501,355.46
  5. Step 5: Solve for x
    x = 1,739,501,355.46/53,311.80
  6. Step 6: Final answer
    x = 32,628.82

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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.