Home / 61,252.20-91,878.30-21,853.80

Finding the Fourth Proportional to 61,252.20, 91,878.30 and 21,853.80

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Solution

The fourth proportional to 61,252.20, 91,878.30 and 21,853.80 is: 32,780.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,252.20 : 91,878.30 = 21,853.80 : x
  2. Step 2: Convert to fraction form
    61,252.20/91,878.30 = 21,853.80/x
  3. Step 3: Cross multiply
    61,252.20x = 91,878.30 × 21,853.80
  4. Step 4: Simplify right side
    61,252.20x = 2,007,889,992.54
  5. Step 5: Solve for x
    x = 2,007,889,992.54/61,252.20
  6. Step 6: Final answer
    x = 32,780.70

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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.