Home / 76,312.26-113,824.49-71,922.78

Finding the Fourth Proportional to 76,312.26, 113,824.49 and 71,922.78

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Solution

The fourth proportional to 76,312.26, 113,824.49 and 71,922.78 is: 107,277.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,312.26 : 113,824.49 = 71,922.78 : x
  2. Step 2: Convert to fraction form
    76,312.26/113,824.49 = 71,922.78/x
  3. Step 3: Cross multiply
    76,312.26x = 113,824.49 × 71,922.78
  4. Step 4: Simplify right side
    76,312.26x = 8,186,573,393.27
  5. Step 5: Solve for x
    x = 8,186,573,393.27/76,312.26
  6. Step 6: Final answer
    x = 107,277.30

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.