Home / 66,909.35-92,103.12-57,830.57

Finding the Fourth Proportional to 66,909.35, 92,103.12 and 57,830.57

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Solution

The fourth proportional to 66,909.35, 92,103.12 and 57,830.57 is: 79,605.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,909.35 : 92,103.12 = 57,830.57 : x
  2. Step 2: Convert to fraction form
    66,909.35/92,103.12 = 57,830.57/x
  3. Step 3: Cross multiply
    66,909.35x = 92,103.12 × 57,830.57
  4. Step 4: Simplify right side
    66,909.35x = 5,326,375,467.86
  5. Step 5: Solve for x
    x = 5,326,375,467.86/66,909.35
  6. Step 6: Final answer
    x = 79,605.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.