Home / 45,853.60-68,780.40-38,855.20

Finding the Fourth Proportional to 45,853.60, 68,780.40 and 38,855.20

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Solution

The fourth proportional to 45,853.60, 68,780.40 and 38,855.20 is: 58,282.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,853.60 : 68,780.40 = 38,855.20 : x
  2. Step 2: Convert to fraction form
    45,853.60/68,780.40 = 38,855.20/x
  3. Step 3: Cross multiply
    45,853.60x = 68,780.40 × 38,855.20
  4. Step 4: Simplify right side
    45,853.60x = 2,672,476,198.08
  5. Step 5: Solve for x
    x = 2,672,476,198.08/45,853.60
  6. Step 6: Final answer
    x = 58,282.80

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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.