Home / 51,474.02-77,211.84-20,309

Finding the Fourth Proportional to 51,474.02, 77,211.84 and 20,309

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Solution

The fourth proportional to 51,474.02, 77,211.84 and 20,309 is: 30,463.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,474.02 : 77,211.84 = 20,309 : x
  2. Step 2: Convert to fraction form
    51,474.02/77,211.84 = 20,309/x
  3. Step 3: Cross multiply
    51,474.02x = 77,211.84 × 20,309
  4. Step 4: Simplify right side
    51,474.02x = 1,568,095,258.56
  5. Step 5: Solve for x
    x = 1,568,095,258.56/51,474.02
  6. Step 6: Final answer
    x = 30,463.82

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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.