Home / 45,680.64-68,520.96-14,515.89

Finding the Fourth Proportional to 45,680.64, 68,520.96 and 14,515.89

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Solution

The fourth proportional to 45,680.64, 68,520.96 and 14,515.89 is: 21,773.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,680.64 : 68,520.96 = 14,515.89 : x
  2. Step 2: Convert to fraction form
    45,680.64/68,520.96 = 14,515.89/x
  3. Step 3: Cross multiply
    45,680.64x = 68,520.96 × 14,515.89
  4. Step 4: Simplify right side
    45,680.64x = 994,642,718.05
  5. Step 5: Solve for x
    x = 994,642,718.05/45,680.64
  6. Step 6: Final answer
    x = 21,773.84

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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.