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Finding the Fourth Proportional to 53,755.25, 80,507.72 and 51,886.58

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Solution

The fourth proportional to 53,755.25, 80,507.72 and 51,886.58 is: 77,709.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,755.25 : 80,507.72 = 51,886.58 : x
  2. Step 2: Convert to fraction form
    53,755.25/80,507.72 = 51,886.58/x
  3. Step 3: Cross multiply
    53,755.25x = 80,507.72 × 51,886.58
  4. Step 4: Simplify right side
    53,755.25x = 4,177,269,981.58
  5. Step 5: Solve for x
    x = 4,177,269,981.58/53,755.25
  6. Step 6: Final answer
    x = 77,709.07

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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.