Home / 76,237.31-114,347.30-20,081.81

Finding the Fourth Proportional to 76,237.31, 114,347.30 and 20,081.81

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Solution

The fourth proportional to 76,237.31, 114,347.30 and 20,081.81 is: 30,120.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,237.31 : 114,347.30 = 20,081.81 : x
  2. Step 2: Convert to fraction form
    76,237.31/114,347.30 = 20,081.81/x
  3. Step 3: Cross multiply
    76,237.31x = 114,347.30 × 20,081.81
  4. Step 4: Simplify right side
    76,237.31x = 2,296,300,080.47
  5. Step 5: Solve for x
    x = 2,296,300,080.47/76,237.31
  6. Step 6: Final answer
    x = 30,120.43

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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.