Home / 71,146.54-98,179.03-39,314.75

Finding the Fourth Proportional to 71,146.54, 98,179.03 and 39,314.75

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Solution

The fourth proportional to 71,146.54, 98,179.03 and 39,314.75 is: 54,252.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,146.54 : 98,179.03 = 39,314.75 : x
  2. Step 2: Convert to fraction form
    71,146.54/98,179.03 = 39,314.75/x
  3. Step 3: Cross multiply
    71,146.54x = 98,179.03 × 39,314.75
  4. Step 4: Simplify right side
    71,146.54x = 3,859,884,019.69
  5. Step 5: Solve for x
    x = 3,859,884,019.69/71,146.54
  6. Step 6: Final answer
    x = 54,252.59

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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.