Home / 83,546.02-125,318.76-21,216.52

Finding the Fourth Proportional to 83,546.02, 125,318.76 and 21,216.52

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Solution

The fourth proportional to 83,546.02, 125,318.76 and 21,216.52 is: 31,824.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,546.02 : 125,318.76 = 21,216.52 : x
  2. Step 2: Convert to fraction form
    83,546.02/125,318.76 = 21,216.52/x
  3. Step 3: Cross multiply
    83,546.02x = 125,318.76 × 21,216.52
  4. Step 4: Simplify right side
    83,546.02x = 2,658,827,977.92
  5. Step 5: Solve for x
    x = 2,658,827,977.92/83,546.02
  6. Step 6: Final answer
    x = 31,824.71

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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.