Home / 51,020.67-76,514-21,432.99

Finding the Fourth Proportional to 51,020.67, 76,514 and 21,432.99

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Solution

The fourth proportional to 51,020.67, 76,514 and 21,432.99 is: 32,142.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,020.67 : 76,514 = 21,432.99 : x
  2. Step 2: Convert to fraction form
    51,020.67/76,514 = 21,432.99/x
  3. Step 3: Cross multiply
    51,020.67x = 76,514 × 21,432.99
  4. Step 4: Simplify right side
    51,020.67x = 1,639,923,796.86
  5. Step 5: Solve for x
    x = 1,639,923,796.86/51,020.67
  6. Step 6: Final answer
    x = 32,142.34

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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.