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Finding the Fourth Proportional to 44,609.50, 66,940.17 and 19,985.50

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Solution

The fourth proportional to 44,609.50, 66,940.17 and 19,985.50 is: 29,989.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,609.50 : 66,940.17 = 19,985.50 : x
  2. Step 2: Convert to fraction form
    44,609.50/66,940.17 = 19,985.50/x
  3. Step 3: Cross multiply
    44,609.50x = 66,940.17 × 19,985.50
  4. Step 4: Simplify right side
    44,609.50x = 1,337,832,767.54
  5. Step 5: Solve for x
    x = 1,337,832,767.54/44,609.50
  6. Step 6: Final answer
    x = 29,989.86

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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.