Home / 88,680.10-133,021.32-29,515.78

Finding the Fourth Proportional to 88,680.10, 133,021.32 and 29,515.78

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Solution

The fourth proportional to 88,680.10, 133,021.32 and 29,515.78 is: 44,274.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,680.10 : 133,021.32 = 29,515.78 : x
  2. Step 2: Convert to fraction form
    88,680.10/133,021.32 = 29,515.78/x
  3. Step 3: Cross multiply
    88,680.10x = 133,021.32 × 29,515.78
  4. Step 4: Simplify right side
    88,680.10x = 3,926,228,016.43
  5. Step 5: Solve for x
    x = 3,926,228,016.43/88,680.10
  6. Step 6: Final answer
    x = 44,274.06

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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.