Home / 45,505.97-68,259.09-13,915.89

Finding the Fourth Proportional to 45,505.97, 68,259.09 and 13,915.89

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Solution

The fourth proportional to 45,505.97, 68,259.09 and 13,915.89 is: 20,873.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,505.97 : 68,259.09 = 13,915.89 : x
  2. Step 2: Convert to fraction form
    45,505.97/68,259.09 = 13,915.89/x
  3. Step 3: Cross multiply
    45,505.97x = 68,259.09 × 13,915.89
  4. Step 4: Simplify right side
    45,505.97x = 949,885,987.94
  5. Step 5: Solve for x
    x = 949,885,987.94/45,505.97
  6. Step 6: Final answer
    x = 20,873.88

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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.