Home / 51,977.64-71,728.82-28,104.36

Finding the Fourth Proportional to 51,977.64, 71,728.82 and 28,104.36

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Solution

The fourth proportional to 51,977.64, 71,728.82 and 28,104.36 is: 38,783.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,977.64 : 71,728.82 = 28,104.36 : x
  2. Step 2: Convert to fraction form
    51,977.64/71,728.82 = 28,104.36/x
  3. Step 3: Cross multiply
    51,977.64x = 71,728.82 × 28,104.36
  4. Step 4: Simplify right side
    51,977.64x = 2,015,892,579.66
  5. Step 5: Solve for x
    x = 2,015,892,579.66/51,977.64
  6. Step 6: Final answer
    x = 38,783.84

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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.