Home / 66,170.71-99,200.26-28,702.59

Finding the Fourth Proportional to 66,170.71, 99,200.26 and 28,702.59

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Solution

The fourth proportional to 66,170.71, 99,200.26 and 28,702.59 is: 43,029.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,170.71 : 99,200.26 = 28,702.59 : x
  2. Step 2: Convert to fraction form
    66,170.71/99,200.26 = 28,702.59/x
  3. Step 3: Cross multiply
    66,170.71x = 99,200.26 × 28,702.59
  4. Step 4: Simplify right side
    66,170.71x = 2,847,304,390.67
  5. Step 5: Solve for x
    x = 2,847,304,390.67/66,170.71
  6. Step 6: Final answer
    x = 43,029.68

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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.