Home / 71,415.39-98,554.46-39,147.86

Finding the Fourth Proportional to 71,415.39, 98,554.46 and 39,147.86

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Solution

The fourth proportional to 71,415.39, 98,554.46 and 39,147.86 is: 54,024.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,415.39 : 98,554.46 = 39,147.86 : x
  2. Step 2: Convert to fraction form
    71,415.39/98,554.46 = 39,147.86/x
  3. Step 3: Cross multiply
    71,415.39x = 98,554.46 × 39,147.86
  4. Step 4: Simplify right side
    71,415.39x = 3,858,195,513.94
  5. Step 5: Solve for x
    x = 3,858,195,513.94/71,415.39
  6. Step 6: Final answer
    x = 54,024.71

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1.5x scale

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.