Home / 66,649.20-99,975.60-29,190

Finding the Fourth Proportional to 66,649.20, 99,975.60 and 29,190

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Solution

The fourth proportional to 66,649.20, 99,975.60 and 29,190 is: 43,785.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,649.20 : 99,975.60 = 29,190 : x
  2. Step 2: Convert to fraction form
    66,649.20/99,975.60 = 29,190/x
  3. Step 3: Cross multiply
    66,649.20x = 99,975.60 × 29,190
  4. Step 4: Simplify right side
    66,649.20x = 2,918,287,764
  5. Step 5: Solve for x
    x = 2,918,287,764/66,649.20
  6. Step 6: Final answer
    x = 43,785.79

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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.