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Finding the Fourth Proportional to 45,792.98, 68,680.13 and 28,920.89

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Solution

The fourth proportional to 45,792.98, 68,680.13 and 28,920.89 is: 43,375.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,792.98 : 68,680.13 = 28,920.89 : x
  2. Step 2: Convert to fraction form
    45,792.98/68,680.13 = 28,920.89/x
  3. Step 3: Cross multiply
    45,792.98x = 68,680.13 × 28,920.89
  4. Step 4: Simplify right side
    45,792.98x = 1,986,290,484.92
  5. Step 5: Solve for x
    x = 1,986,290,484.92/45,792.98
  6. Step 6: Final answer
    x = 43,375.44

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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.