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Finding the Fourth Proportional to 45,809.32, 68,714.30 and 14,645.80

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Solution

The fourth proportional to 45,809.32, 68,714.30 and 14,645.80 is: 21,968.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,809.32 : 68,714.30 = 14,645.80 : x
  2. Step 2: Convert to fraction form
    45,809.32/68,714.30 = 14,645.80/x
  3. Step 3: Cross multiply
    45,809.32x = 68,714.30 × 14,645.80
  4. Step 4: Simplify right side
    45,809.32x = 1,006,375,894.94
  5. Step 5: Solve for x
    x = 1,006,375,894.94/45,809.32
  6. Step 6: Final answer
    x = 21,968.80

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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.