Home / 43,779.03-65,729.37-30,420.56

Finding the Fourth Proportional to 43,779.03, 65,729.37 and 30,420.56

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Solution

The fourth proportional to 43,779.03, 65,729.37 and 30,420.56 is: 45,673.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,779.03 : 65,729.37 = 30,420.56 : x
  2. Step 2: Convert to fraction form
    43,779.03/65,729.37 = 30,420.56/x
  3. Step 3: Cross multiply
    43,779.03x = 65,729.37 × 30,420.56
  4. Step 4: Simplify right side
    43,779.03x = 1,999,524,522.25
  5. Step 5: Solve for x
    x = 1,999,524,522.25/43,779.03
  6. Step 6: Final answer
    x = 45,673.11

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1.5x scale

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.