Home / 77,714.56-116,554.42-30,330.78

Finding the Fourth Proportional to 77,714.56, 116,554.42 and 30,330.78

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Solution

The fourth proportional to 77,714.56, 116,554.42 and 30,330.78 is: 45,489.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,714.56 : 116,554.42 = 30,330.78 : x
  2. Step 2: Convert to fraction form
    77,714.56/116,554.42 = 30,330.78/x
  3. Step 3: Cross multiply
    77,714.56x = 116,554.42 × 30,330.78
  4. Step 4: Simplify right side
    77,714.56x = 3,535,186,471.05
  5. Step 5: Solve for x
    x = 3,535,186,471.05/77,714.56
  6. Step 6: Final answer
    x = 45,489.37

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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.