Home / 51,343.36-76,999.92-18,057.28

Finding the Fourth Proportional to 51,343.36, 76,999.92 and 18,057.28

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Solution

The fourth proportional to 51,343.36, 76,999.92 and 18,057.28 is: 27,080.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,343.36 : 76,999.92 = 18,057.28 : x
  2. Step 2: Convert to fraction form
    51,343.36/76,999.92 = 18,057.28/x
  3. Step 3: Cross multiply
    51,343.36x = 76,999.92 × 18,057.28
  4. Step 4: Simplify right side
    51,343.36x = 1,390,409,115.42
  5. Step 5: Solve for x
    x = 1,390,409,115.42/51,343.36
  6. Step 6: Final answer
    x = 27,080.60

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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.