Home / 43,612.20-65,418.30-10,780.20

Finding the Fourth Proportional to 43,612.20, 65,418.30 and 10,780.20

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Solution

The fourth proportional to 43,612.20, 65,418.30 and 10,780.20 is: 16,170.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,612.20 : 65,418.30 = 10,780.20 : x
  2. Step 2: Convert to fraction form
    43,612.20/65,418.30 = 10,780.20/x
  3. Step 3: Cross multiply
    43,612.20x = 65,418.30 × 10,780.20
  4. Step 4: Simplify right side
    43,612.20x = 705,222,357.66
  5. Step 5: Solve for x
    x = 705,222,357.66/43,612.20
  6. Step 6: Final answer
    x = 16,170.30

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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.