Home / 43,153.22-64,729.70-19,432.99

Finding the Fourth Proportional to 43,153.22, 64,729.70 and 19,432.99

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Solution

The fourth proportional to 43,153.22, 64,729.70 and 19,432.99 is: 29,149.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,153.22 : 64,729.70 = 19,432.99 : x
  2. Step 2: Convert to fraction form
    43,153.22/64,729.70 = 19,432.99/x
  3. Step 3: Cross multiply
    43,153.22x = 64,729.70 × 19,432.99
  4. Step 4: Simplify right side
    43,153.22x = 1,257,891,999.47
  5. Step 5: Solve for x
    x = 1,257,891,999.47/43,153.22
  6. Step 6: Final answer
    x = 29,149.43

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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.