Home / 49,857.76-74,787.70-20,255.19

Finding the Fourth Proportional to 49,857.76, 74,787.70 and 20,255.19

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Solution

The fourth proportional to 49,857.76, 74,787.70 and 20,255.19 is: 30,383.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,857.76 : 74,787.70 = 20,255.19 : x
  2. Step 2: Convert to fraction form
    49,857.76/74,787.70 = 20,255.19/x
  3. Step 3: Cross multiply
    49,857.76x = 74,787.70 × 20,255.19
  4. Step 4: Simplify right side
    49,857.76x = 1,514,839,073.16
  5. Step 5: Solve for x
    x = 1,514,839,073.16/49,857.76
  6. Step 6: Final answer
    x = 30,383.22

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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.