Home / 55,529.82-83,271.80-21,330.43

Finding the Fourth Proportional to 55,529.82, 83,271.80 and 21,330.43

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Solution

The fourth proportional to 55,529.82, 83,271.80 and 21,330.43 is: 31,986.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,529.82 : 83,271.80 = 21,330.43 : x
  2. Step 2: Convert to fraction form
    55,529.82/83,271.80 = 21,330.43/x
  3. Step 3: Cross multiply
    55,529.82x = 83,271.80 × 21,330.43
  4. Step 4: Simplify right side
    55,529.82x = 1,776,223,146.02
  5. Step 5: Solve for x
    x = 1,776,223,146.02/55,529.82
  6. Step 6: Final answer
    x = 31,986.83

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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.