Home / 51,279.39-76,909.32-21,717.99

Finding the Fourth Proportional to 51,279.39, 76,909.32 and 21,717.99

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Solution

The fourth proportional to 51,279.39, 76,909.32 and 21,717.99 is: 32,572.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,279.39 : 76,909.32 = 21,717.99 : x
  2. Step 2: Convert to fraction form
    51,279.39/76,909.32 = 21,717.99/x
  3. Step 3: Cross multiply
    51,279.39x = 76,909.32 × 21,717.99
  4. Step 4: Simplify right side
    51,279.39x = 1,670,315,842.67
  5. Step 5: Solve for x
    x = 1,670,315,842.67/51,279.39
  6. Step 6: Final answer
    x = 32,572.85

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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.