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Finding the Fourth Proportional to 92,933.80, 128,243.80 and 50,492.28

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Solution

The fourth proportional to 92,933.80, 128,243.80 and 50,492.28 is: 69,676.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,933.80 : 128,243.80 = 50,492.28 : x
  2. Step 2: Convert to fraction form
    92,933.80/128,243.80 = 50,492.28/x
  3. Step 3: Cross multiply
    92,933.80x = 128,243.80 × 50,492.28
  4. Step 4: Simplify right side
    92,933.80x = 6,475,321,857.86
  5. Step 5: Solve for x
    x = 6,475,321,857.86/92,933.80
  6. Step 6: Final answer
    x = 69,676.71

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1.5x scale

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.