Home / 66,890.12-92,317.80-41,404.64

Finding the Fourth Proportional to 66,890.12, 92,317.80 and 41,404.64

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Solution

The fourth proportional to 66,890.12, 92,317.80 and 41,404.64 is: 57,144.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,890.12 : 92,317.80 = 41,404.64 : x
  2. Step 2: Convert to fraction form
    66,890.12/92,317.80 = 41,404.64/x
  3. Step 3: Cross multiply
    66,890.12x = 92,317.80 × 41,404.64
  4. Step 4: Simplify right side
    66,890.12x = 3,822,385,274.59
  5. Step 5: Solve for x
    x = 3,822,385,274.59/66,890.12
  6. Step 6: Final answer
    x = 57,144.24

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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.