Home / 55,421.62-76,481.82-30,271.12

Finding the Fourth Proportional to 55,421.62, 76,481.82 and 30,271.12

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Solution

The fourth proportional to 55,421.62, 76,481.82 and 30,271.12 is: 41,774.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,421.62 : 76,481.82 = 30,271.12 : x
  2. Step 2: Convert to fraction form
    55,421.62/76,481.82 = 30,271.12/x
  3. Step 3: Cross multiply
    55,421.62x = 76,481.82 × 30,271.12
  4. Step 4: Simplify right side
    55,421.62x = 2,315,190,351.04
  5. Step 5: Solve for x
    x = 2,315,190,351.04/55,421.62
  6. Step 6: Final answer
    x = 41,774.14

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1.5x scale

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.