Home / 77,876.94-116,825.13-30,485.91

Finding the Fourth Proportional to 77,876.94, 116,825.13 and 30,485.91

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Solution

The fourth proportional to 77,876.94, 116,825.13 and 30,485.91 is: 45,732.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,876.94 : 116,825.13 = 30,485.91 : x
  2. Step 2: Convert to fraction form
    77,876.94/116,825.13 = 30,485.91/x
  3. Step 3: Cross multiply
    77,876.94x = 116,825.13 × 30,485.91
  4. Step 4: Simplify right side
    77,876.94x = 3,561,520,398.92
  5. Step 5: Solve for x
    x = 3,561,520,398.92/77,876.94
  6. Step 6: Final answer
    x = 45,732.67

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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.