Home / 274,816.50-412,283.55-85,272.72

Finding the Fourth Proportional to 274,816.50, 412,283.55 and 85,272.72

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Solution

The fourth proportional to 274,816.50, 412,283.55 and 85,272.72 is: 127,927.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,816.50 : 412,283.55 = 85,272.72 : x
  2. Step 2: Convert to fraction form
    274,816.50/412,283.55 = 85,272.72/x
  3. Step 3: Cross multiply
    274,816.50x = 412,283.55 × 85,272.72
  4. Step 4: Simplify right side
    274,816.50x = 35,156,539,719.76
  5. Step 5: Solve for x
    x = 35,156,539,719.76/274,816.50
  6. Step 6: Final answer
    x = 127,927.33

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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.