Home / 43,720.54-65,580.84-18,744.46

Finding the Fourth Proportional to 43,720.54, 65,580.84 and 18,744.46

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Solution

The fourth proportional to 43,720.54, 65,580.84 and 18,744.46 is: 28,116.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,720.54 : 65,580.84 = 18,744.46 : x
  2. Step 2: Convert to fraction form
    43,720.54/65,580.84 = 18,744.46/x
  3. Step 3: Cross multiply
    43,720.54x = 65,580.84 × 18,744.46
  4. Step 4: Simplify right side
    43,720.54x = 1,229,277,432.15
  5. Step 5: Solve for x
    x = 1,229,277,432.15/43,720.54
  6. Step 6: Final answer
    x = 28,116.70

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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.