Home / 71,070.45-98,078.75-39,241.36

Finding the Fourth Proportional to 71,070.45, 98,078.75 and 39,241.36

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Solution

The fourth proportional to 71,070.45, 98,078.75 and 39,241.36 is: 54,153.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,070.45 : 98,078.75 = 39,241.36 : x
  2. Step 2: Convert to fraction form
    71,070.45/98,078.75 = 39,241.36/x
  3. Step 3: Cross multiply
    71,070.45x = 98,078.75 × 39,241.36
  4. Step 4: Simplify right side
    71,070.45x = 3,848,743,537.10
  5. Step 5: Solve for x
    x = 3,848,743,537.10/71,070.45
  6. Step 6: Final answer
    x = 54,153.92

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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.