Home / 71,209.11-98,257.82-39,378.24

Finding the Fourth Proportional to 71,209.11, 98,257.82 and 39,378.24

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Solution

The fourth proportional to 71,209.11, 98,257.82 and 39,378.24 is: 54,336.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,209.11 : 98,257.82 = 39,378.24 : x
  2. Step 2: Convert to fraction form
    71,209.11/98,257.82 = 39,378.24/x
  3. Step 3: Cross multiply
    71,209.11x = 98,257.82 × 39,378.24
  4. Step 4: Simplify right side
    71,209.11x = 3,869,220,017.84
  5. Step 5: Solve for x
    x = 3,869,220,017.84/71,209.11
  6. Step 6: Final answer
    x = 54,336.03

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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.