Home / 45,814.28-68,682.40-20,845.55

Finding the Fourth Proportional to 45,814.28, 68,682.40 and 20,845.55

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Solution

The fourth proportional to 45,814.28, 68,682.40 and 20,845.55 is: 31,250.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,814.28 : 68,682.40 = 20,845.55 : x
  2. Step 2: Convert to fraction form
    45,814.28/68,682.40 = 20,845.55/x
  3. Step 3: Cross multiply
    45,814.28x = 68,682.40 × 20,845.55
  4. Step 4: Simplify right side
    45,814.28x = 1,431,722,522.91
  5. Step 5: Solve for x
    x = 1,431,722,522.91/45,814.28
  6. Step 6: Final answer
    x = 31,250.58

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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.