Home / 71,215.80-98,274.84-38,949.90

Finding the Fourth Proportional to 71,215.80, 98,274.84 and 38,949.90

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Solution

The fourth proportional to 71,215.80, 98,274.84 and 38,949.90 is: 53,749.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,215.80 : 98,274.84 = 38,949.90 : x
  2. Step 2: Convert to fraction form
    71,215.80/98,274.84 = 38,949.90/x
  3. Step 3: Cross multiply
    71,215.80x = 98,274.84 × 38,949.90
  4. Step 4: Simplify right side
    71,215.80x = 3,827,795,190.52
  5. Step 5: Solve for x
    x = 3,827,795,190.52/71,215.80
  6. Step 6: Final answer
    x = 53,749.24

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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.