Home / 45,381.20-68,104.20-25,638.80

Finding the Fourth Proportional to 45,381.20, 68,104.20 and 25,638.80

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Solution

The fourth proportional to 45,381.20, 68,104.20 and 25,638.80 is: 38,476.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,381.20 : 68,104.20 = 25,638.80 : x
  2. Step 2: Convert to fraction form
    45,381.20/68,104.20 = 25,638.80/x
  3. Step 3: Cross multiply
    45,381.20x = 68,104.20 × 25,638.80
  4. Step 4: Simplify right side
    45,381.20x = 1,746,109,962.96
  5. Step 5: Solve for x
    x = 1,746,109,962.96/45,381.20
  6. Step 6: Final answer
    x = 38,476.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.