Home / 51,048.32-76,566.40-13,611.20

Finding the Fourth Proportional to 51,048.32, 76,566.40 and 13,611.20

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Solution

The fourth proportional to 51,048.32, 76,566.40 and 13,611.20 is: 20,415.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,048.32 : 76,566.40 = 13,611.20 : x
  2. Step 2: Convert to fraction form
    51,048.32/76,566.40 = 13,611.20/x
  3. Step 3: Cross multiply
    51,048.32x = 76,566.40 × 13,611.20
  4. Step 4: Simplify right side
    51,048.32x = 1,042,160,583.68
  5. Step 5: Solve for x
    x = 1,042,160,583.68/51,048.32
  6. Step 6: Final answer
    x = 20,415.18

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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.