Home / 55,307.12-82,858.34-30,309.98

Finding the Fourth Proportional to 55,307.12, 82,858.34 and 30,309.98

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Solution

The fourth proportional to 55,307.12, 82,858.34 and 30,309.98 is: 45,408.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,307.12 : 82,858.34 = 30,309.98 : x
  2. Step 2: Convert to fraction form
    55,307.12/82,858.34 = 30,309.98/x
  3. Step 3: Cross multiply
    55,307.12x = 82,858.34 × 30,309.98
  4. Step 4: Simplify right side
    55,307.12x = 2,511,434,628.23
  5. Step 5: Solve for x
    x = 2,511,434,628.23/55,307.12
  6. Step 6: Final answer
    x = 45,408.88

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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.