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Finding the Fourth Proportional to 56,622.67, 84,942.16 and 21,080.97

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Solution

The fourth proportional to 56,622.67, 84,942.16 and 21,080.97 is: 31,624.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,622.67 : 84,942.16 = 21,080.97 : x
  2. Step 2: Convert to fraction form
    56,622.67/84,942.16 = 21,080.97/x
  3. Step 3: Cross multiply
    56,622.67x = 84,942.16 × 21,080.97
  4. Step 4: Simplify right side
    56,622.67x = 1,790,663,073.99
  5. Step 5: Solve for x
    x = 1,790,663,073.99/56,622.67
  6. Step 6: Final answer
    x = 31,624.49

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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.