Home / 56,205.62-84,283.78-21,120.64

Finding the Fourth Proportional to 56,205.62, 84,283.78 and 21,120.64

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Solution

The fourth proportional to 56,205.62, 84,283.78 and 21,120.64 is: 31,671.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,205.62 : 84,283.78 = 21,120.64 : x
  2. Step 2: Convert to fraction form
    56,205.62/84,283.78 = 21,120.64/x
  3. Step 3: Cross multiply
    56,205.62x = 84,283.78 × 21,120.64
  4. Step 4: Simplify right side
    56,205.62x = 1,780,127,375.22
  5. Step 5: Solve for x
    x = 1,780,127,375.22/56,205.62
  6. Step 6: Final answer
    x = 31,671.70

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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.