Home / 55,291.04-82,915.49-19,745.72

Finding the Fourth Proportional to 55,291.04, 82,915.49 and 19,745.72

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Solution

The fourth proportional to 55,291.04, 82,915.49 and 19,745.72 is: 29,611.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,291.04 : 82,915.49 = 19,745.72 : x
  2. Step 2: Convert to fraction form
    55,291.04/82,915.49 = 19,745.72/x
  3. Step 3: Cross multiply
    55,291.04x = 82,915.49 × 19,745.72
  4. Step 4: Simplify right side
    55,291.04x = 1,637,226,447.44
  5. Step 5: Solve for x
    x = 1,637,226,447.44/55,291.04
  6. Step 6: Final answer
    x = 29,611.06

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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.