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Finding the Fourth Proportional to 60,084.78, 90,099.82 and 31,997.62

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Solution

The fourth proportional to 60,084.78, 90,099.82 and 31,997.62 is: 47,981.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,084.78 : 90,099.82 = 31,997.62 : x
  2. Step 2: Convert to fraction form
    60,084.78/90,099.82 = 31,997.62/x
  3. Step 3: Cross multiply
    60,084.78x = 90,099.82 × 31,997.62
  4. Step 4: Simplify right side
    60,084.78x = 2,882,979,802.43
  5. Step 5: Solve for x
    x = 2,882,979,802.43/60,084.78
  6. Step 6: Final answer
    x = 47,981.86

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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.