Home / 55,531.04-76,633.44-30,380

Finding the Fourth Proportional to 55,531.04, 76,633.44 and 30,380

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Solution

The fourth proportional to 55,531.04, 76,633.44 and 30,380 is: 41,924.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,531.04 : 76,633.44 = 30,380 : x
  2. Step 2: Convert to fraction form
    55,531.04/76,633.44 = 30,380/x
  3. Step 3: Cross multiply
    55,531.04x = 76,633.44 × 30,380
  4. Step 4: Simplify right side
    55,531.04x = 2,328,123,907.20
  5. Step 5: Solve for x
    x = 2,328,123,907.20/55,531.04
  6. Step 6: Final answer
    x = 41,924.73

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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.