Home / 50,665.35-76,025.40-21,103.59

Finding the Fourth Proportional to 50,665.35, 76,025.40 and 21,103.59

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Solution

The fourth proportional to 50,665.35, 76,025.40 and 21,103.59 is: 31,666.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,665.35 : 76,025.40 = 21,103.59 : x
  2. Step 2: Convert to fraction form
    50,665.35/76,025.40 = 21,103.59/x
  3. Step 3: Cross multiply
    50,665.35x = 76,025.40 × 21,103.59
  4. Step 4: Simplify right side
    50,665.35x = 1,604,408,871.19
  5. Step 5: Solve for x
    x = 1,604,408,871.19/50,665.35
  6. Step 6: Final answer
    x = 31,666.79

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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.