Home / 76,814.19-115,221.15-30,034.26

Finding the Fourth Proportional to 76,814.19, 115,221.15 and 30,034.26

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Solution

The fourth proportional to 76,814.19, 115,221.15 and 30,034.26 is: 45,051.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,814.19 : 115,221.15 = 30,034.26 : x
  2. Step 2: Convert to fraction form
    76,814.19/115,221.15 = 30,034.26/x
  3. Step 3: Cross multiply
    76,814.19x = 115,221.15 × 30,034.26
  4. Step 4: Simplify right side
    76,814.19x = 3,460,581,976.60
  5. Step 5: Solve for x
    x = 3,460,581,976.60/76,814.19
  6. Step 6: Final answer
    x = 45,051.34

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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.