Home / 45,918.20-68,780.10-36,003.80

Finding the Fourth Proportional to 45,918.20, 68,780.10 and 36,003.80

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Solution

The fourth proportional to 45,918.20, 68,780.10 and 36,003.80 is: 53,929.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,918.20 : 68,780.10 = 36,003.80 : x
  2. Step 2: Convert to fraction form
    45,918.20/68,780.10 = 36,003.80/x
  3. Step 3: Cross multiply
    45,918.20x = 68,780.10 × 36,003.80
  4. Step 4: Simplify right side
    45,918.20x = 2,476,344,964.38
  5. Step 5: Solve for x
    x = 2,476,344,964.38/45,918.20
  6. Step 6: Final answer
    x = 53,929.49

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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.