Home / 51,616.64-71,236.36-28,961.75

Finding the Fourth Proportional to 51,616.64, 71,236.36 and 28,961.75

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Solution

The fourth proportional to 51,616.64, 71,236.36 and 28,961.75 is: 39,970.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,616.64 : 71,236.36 = 28,961.75 : x
  2. Step 2: Convert to fraction form
    51,616.64/71,236.36 = 28,961.75/x
  3. Step 3: Cross multiply
    51,616.64x = 71,236.36 × 28,961.75
  4. Step 4: Simplify right side
    51,616.64x = 2,063,129,863.52
  5. Step 5: Solve for x
    x = 2,063,129,863.52/51,616.64
  6. Step 6: Final answer
    x = 39,970.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.