Home / 77,713.74-116,553.20-30,330.09

Finding the Fourth Proportional to 77,713.74, 116,553.20 and 30,330.09

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Solution

The fourth proportional to 77,713.74, 116,553.20 and 30,330.09 is: 45,488.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,713.74 : 116,553.20 = 30,330.09 : x
  2. Step 2: Convert to fraction form
    77,713.74/116,553.20 = 30,330.09/x
  3. Step 3: Cross multiply
    77,713.74x = 116,553.20 × 30,330.09
  4. Step 4: Simplify right side
    77,713.74x = 3,535,068,894.14
  5. Step 5: Solve for x
    x = 3,535,068,894.14/77,713.74
  6. Step 6: Final answer
    x = 45,488.34

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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.