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Finding the Fourth Proportional to 53,799, 80,815.26 and 45,495.68

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Solution

The fourth proportional to 53,799, 80,815.26 and 45,495.68 is: 68,342.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,799 : 80,815.26 = 45,495.68 : x
  2. Step 2: Convert to fraction form
    53,799/80,815.26 = 45,495.68/x
  3. Step 3: Cross multiply
    53,799x = 80,815.26 × 45,495.68
  4. Step 4: Simplify right side
    53,799x = 3,676,745,208.08
  5. Step 5: Solve for x
    x = 3,676,745,208.08/53,799
  6. Step 6: Final answer
    x = 68,342.26

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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.