Home / 50,731.20-76,109.76-19,558.08

Finding the Fourth Proportional to 50,731.20, 76,109.76 and 19,558.08

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Solution

The fourth proportional to 50,731.20, 76,109.76 and 19,558.08 is: 29,342.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,731.20 : 76,109.76 = 19,558.08 : x
  2. Step 2: Convert to fraction form
    50,731.20/76,109.76 = 19,558.08/x
  3. Step 3: Cross multiply
    50,731.20x = 76,109.76 × 19,558.08
  4. Step 4: Simplify right side
    50,731.20x = 1,488,560,774.86
  5. Step 5: Solve for x
    x = 1,488,560,774.86/50,731.20
  6. Step 6: Final answer
    x = 29,342.12

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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.