Home / 55,029.72-82,529-21,287.96

Finding the Fourth Proportional to 55,029.72, 82,529 and 21,287.96

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Solution

The fourth proportional to 55,029.72, 82,529 and 21,287.96 is: 31,925.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,029.72 : 82,529 = 21,287.96 : x
  2. Step 2: Convert to fraction form
    55,029.72/82,529 = 21,287.96/x
  3. Step 3: Cross multiply
    55,029.72x = 82,529 × 21,287.96
  4. Step 4: Simplify right side
    55,029.72x = 1,756,874,050.84
  5. Step 5: Solve for x
    x = 1,756,874,050.84/55,029.72
  6. Step 6: Final answer
    x = 31,925.91

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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.