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Finding the Fourth Proportional to 51,199.90, 76,834.44 and 17,920.24

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Solution

The fourth proportional to 51,199.90, 76,834.44 and 17,920.24 is: 26,892.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,199.90 : 76,834.44 = 17,920.24 : x
  2. Step 2: Convert to fraction form
    51,199.90/76,834.44 = 17,920.24/x
  3. Step 3: Cross multiply
    51,199.90x = 76,834.44 × 17,920.24
  4. Step 4: Simplify right side
    51,199.90x = 1,376,891,605.07
  5. Step 5: Solve for x
    x = 1,376,891,605.07/51,199.90
  6. Step 6: Final answer
    x = 26,892.47

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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.