Home / 66,945.39-100,368.87-31,909.65

Finding the Fourth Proportional to 66,945.39, 100,368.87 and 31,909.65

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Solution

The fourth proportional to 66,945.39, 100,368.87 and 31,909.65 is: 47,841.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,945.39 : 100,368.87 = 31,909.65 : x
  2. Step 2: Convert to fraction form
    66,945.39/100,368.87 = 31,909.65/x
  3. Step 3: Cross multiply
    66,945.39x = 100,368.87 × 31,909.65
  4. Step 4: Simplify right side
    66,945.39x = 3,202,735,512.60
  5. Step 5: Solve for x
    x = 3,202,735,512.60/66,945.39
  6. Step 6: Final answer
    x = 47,841.02

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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.