Home / 43,405.90-65,041.50-30,104.86

Finding the Fourth Proportional to 43,405.90, 65,041.50 and 30,104.86

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Solution

The fourth proportional to 43,405.90, 65,041.50 and 30,104.86 is: 45,110.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,405.90 : 65,041.50 = 30,104.86 : x
  2. Step 2: Convert to fraction form
    43,405.90/65,041.50 = 30,104.86/x
  3. Step 3: Cross multiply
    43,405.90x = 65,041.50 × 30,104.86
  4. Step 4: Simplify right side
    43,405.90x = 1,958,065,251.69
  5. Step 5: Solve for x
    x = 1,958,065,251.69/43,405.90
  6. Step 6: Final answer
    x = 45,110.58

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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.