Home / 71,142.30-98,175.51-39,310.52

Finding the Fourth Proportional to 71,142.30, 98,175.51 and 39,310.52

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Solution

The fourth proportional to 71,142.30, 98,175.51 and 39,310.52 is: 54,248.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,142.30 : 98,175.51 = 39,310.52 : x
  2. Step 2: Convert to fraction form
    71,142.30/98,175.51 = 39,310.52/x
  3. Step 3: Cross multiply
    71,142.30x = 98,175.51 × 39,310.52
  4. Step 4: Simplify right side
    71,142.30x = 3,859,329,858.49
  5. Step 5: Solve for x
    x = 3,859,329,858.49/71,142.30
  6. Step 6: Final answer
    x = 54,248.03

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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.