Home / 50,665.10-76,025.01-21,103.34

Finding the Fourth Proportional to 50,665.10, 76,025.01 and 21,103.34

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Solution

The fourth proportional to 50,665.10, 76,025.01 and 21,103.34 is: 31,666.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,665.10 : 76,025.01 = 21,103.34 : x
  2. Step 2: Convert to fraction form
    50,665.10/76,025.01 = 21,103.34/x
  3. Step 3: Cross multiply
    50,665.10x = 76,025.01 × 21,103.34
  4. Step 4: Simplify right side
    50,665.10x = 1,604,381,634.53
  5. Step 5: Solve for x
    x = 1,604,381,634.53/50,665.10
  6. Step 6: Final answer
    x = 31,666.41

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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.