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Finding the Fourth Proportional to 77,634.88, 116,452.76 and 30,920.56

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Solution

The fourth proportional to 77,634.88, 116,452.76 and 30,920.56 is: 46,381.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,634.88 : 116,452.76 = 30,920.56 : x
  2. Step 2: Convert to fraction form
    77,634.88/116,452.76 = 30,920.56/x
  3. Step 3: Cross multiply
    77,634.88x = 116,452.76 × 30,920.56
  4. Step 4: Simplify right side
    77,634.88x = 3,600,784,107.01
  5. Step 5: Solve for x
    x = 3,600,784,107.01/77,634.88
  6. Step 6: Final answer
    x = 46,381.01

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1.5x scale

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.