Home / 55,531-76,633.89-30,381.04

Finding the Fourth Proportional to 55,531, 76,633.89 and 30,381.04

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Solution

The fourth proportional to 55,531, 76,633.89 and 30,381.04 is: 41,926.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,531 : 76,633.89 = 30,381.04 : x
  2. Step 2: Convert to fraction form
    55,531/76,633.89 = 30,381.04/x
  3. Step 3: Cross multiply
    55,531x = 76,633.89 × 30,381.04
  4. Step 4: Simplify right side
    55,531x = 2,328,217,277.45
  5. Step 5: Solve for x
    x = 2,328,217,277.45/55,531
  6. Step 6: Final answer
    x = 41,926.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.