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Finding the Fourth Proportional to 77,682.88, 116,526.89 and 21,523.55

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Solution

The fourth proportional to 77,682.88, 116,526.89 and 21,523.55 is: 32,286.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,682.88 : 116,526.89 = 21,523.55 : x
  2. Step 2: Convert to fraction form
    77,682.88/116,526.89 = 21,523.55/x
  3. Step 3: Cross multiply
    77,682.88x = 116,526.89 × 21,523.55
  4. Step 4: Simplify right side
    77,682.88x = 2,508,072,343.26
  5. Step 5: Solve for x
    x = 2,508,072,343.26/77,682.88
  6. Step 6: Final answer
    x = 32,286.04

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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.