Home / 80,977.09-121,216.50-52,836.55

Finding the Fourth Proportional to 80,977.09, 121,216.50 and 52,836.55

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Solution

The fourth proportional to 80,977.09, 121,216.50 and 52,836.55 is: 79,092.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,977.09 : 121,216.50 = 52,836.55 : x
  2. Step 2: Convert to fraction form
    80,977.09/121,216.50 = 52,836.55/x
  3. Step 3: Cross multiply
    80,977.09x = 121,216.50 × 52,836.55
  4. Step 4: Simplify right side
    80,977.09x = 6,404,661,663.08
  5. Step 5: Solve for x
    x = 6,404,661,663.08/80,977.09
  6. Step 6: Final answer
    x = 79,092.27

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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.