Home / 51,449.01-71,000.90-28,787.81

Finding the Fourth Proportional to 51,449.01, 71,000.90 and 28,787.81

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Solution

The fourth proportional to 51,449.01, 71,000.90 and 28,787.81 is: 39,727.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,449.01 : 71,000.90 = 28,787.81 : x
  2. Step 2: Convert to fraction form
    51,449.01/71,000.90 = 28,787.81/x
  3. Step 3: Cross multiply
    51,449.01x = 71,000.90 × 28,787.81
  4. Step 4: Simplify right side
    51,449.01x = 2,043,959,920.09
  5. Step 5: Solve for x
    x = 2,043,959,920.09/51,449.01
  6. Step 6: Final answer
    x = 39,727.88

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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.