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Finding the Fourth Proportional to 80,503.74, 120,777.48 and 57,277.80

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Solution

The fourth proportional to 80,503.74, 120,777.48 and 57,277.80 is: 85,932.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,503.74 : 120,777.48 = 57,277.80 : x
  2. Step 2: Convert to fraction form
    80,503.74/120,777.48 = 57,277.80/x
  3. Step 3: Cross multiply
    80,503.74x = 120,777.48 × 57,277.80
  4. Step 4: Simplify right side
    80,503.74x = 6,917,868,343.94
  5. Step 5: Solve for x
    x = 6,917,868,343.94/80,503.74
  6. Step 6: Final answer
    x = 85,932.26

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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.