Home / 52,183.40-78,286.02-21,018.64

Finding the Fourth Proportional to 52,183.40, 78,286.02 and 21,018.64

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Solution

The fourth proportional to 52,183.40, 78,286.02 and 21,018.64 is: 31,532.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,183.40 : 78,286.02 = 21,018.64 : x
  2. Step 2: Convert to fraction form
    52,183.40/78,286.02 = 21,018.64/x
  3. Step 3: Cross multiply
    52,183.40x = 78,286.02 × 21,018.64
  4. Step 4: Simplify right side
    52,183.40x = 1,645,465,671.41
  5. Step 5: Solve for x
    x = 1,645,465,671.41/52,183.40
  6. Step 6: Final answer
    x = 31,532.36

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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.