Home / 43,770.60-65,672.10-14,189.40

Finding the Fourth Proportional to 43,770.60, 65,672.10 and 14,189.40

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Solution

The fourth proportional to 43,770.60, 65,672.10 and 14,189.40 is: 21,289.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,770.60 : 65,672.10 = 14,189.40 : x
  2. Step 2: Convert to fraction form
    43,770.60/65,672.10 = 14,189.40/x
  3. Step 3: Cross multiply
    43,770.60x = 65,672.10 × 14,189.40
  4. Step 4: Simplify right side
    43,770.60x = 931,847,695.74
  5. Step 5: Solve for x
    x = 931,847,695.74/43,770.60
  6. Step 6: Final answer
    x = 21,289.35

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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.