Home / 50,774.20-76,139.70-21,182.20

Finding the Fourth Proportional to 50,774.20, 76,139.70 and 21,182.20

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Solution

The fourth proportional to 50,774.20, 76,139.70 and 21,182.20 is: 31,764.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,774.20 : 76,139.70 = 21,182.20 : x
  2. Step 2: Convert to fraction form
    50,774.20/76,139.70 = 21,182.20/x
  3. Step 3: Cross multiply
    50,774.20x = 76,139.70 × 21,182.20
  4. Step 4: Simplify right side
    50,774.20x = 1,612,806,353.34
  5. Step 5: Solve for x
    x = 1,612,806,353.34/50,774.20
  6. Step 6: Final answer
    x = 31,764.29

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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.