Home / 50,450.90-75,685.59-20,871.05

Finding the Fourth Proportional to 50,450.90, 75,685.59 and 20,871.05

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Solution

The fourth proportional to 50,450.90, 75,685.59 and 20,871.05 is: 31,310.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,450.90 : 75,685.59 = 20,871.05 : x
  2. Step 2: Convert to fraction form
    50,450.90/75,685.59 = 20,871.05/x
  3. Step 3: Cross multiply
    50,450.90x = 75,685.59 × 20,871.05
  4. Step 4: Simplify right side
    50,450.90x = 1,579,637,354.74
  5. Step 5: Solve for x
    x = 1,579,637,354.74/50,450.90
  6. Step 6: Final answer
    x = 31,310.39

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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.