Home / 83,872.22-115,748.48-48,068.20

Finding the Fourth Proportional to 83,872.22, 115,748.48 and 48,068.20

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Solution

The fourth proportional to 83,872.22, 115,748.48 and 48,068.20 is: 66,336.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,872.22 : 115,748.48 = 48,068.20 : x
  2. Step 2: Convert to fraction form
    83,872.22/115,748.48 = 48,068.20/x
  3. Step 3: Cross multiply
    83,872.22x = 115,748.48 × 48,068.20
  4. Step 4: Simplify right side
    83,872.22x = 5,563,821,086.34
  5. Step 5: Solve for x
    x = 5,563,821,086.34/83,872.22
  6. Step 6: Final answer
    x = 66,336.88

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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.