Home / 55,271.11-76,274.21-30,120.61

Finding the Fourth Proportional to 55,271.11, 76,274.21 and 30,120.61

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Solution

The fourth proportional to 55,271.11, 76,274.21 and 30,120.61 is: 41,566.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,271.11 : 76,274.21 = 30,120.61 : x
  2. Step 2: Convert to fraction form
    55,271.11/76,274.21 = 30,120.61/x
  3. Step 3: Cross multiply
    55,271.11x = 76,274.21 × 30,120.61
  4. Step 4: Simplify right side
    55,271.11x = 2,297,425,590.67
  5. Step 5: Solve for x
    x = 2,297,425,590.67/55,271.11
  6. Step 6: Final answer
    x = 41,566.48

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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.