Home / 92,986.11-128,324.25-50,547.78

Finding the Fourth Proportional to 92,986.11, 128,324.25 and 50,547.78

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Solution

The fourth proportional to 92,986.11, 128,324.25 and 50,547.78 is: 69,757.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,986.11 : 128,324.25 = 50,547.78 : x
  2. Step 2: Convert to fraction form
    92,986.11/128,324.25 = 50,547.78/x
  3. Step 3: Cross multiply
    92,986.11x = 128,324.25 × 50,547.78
  4. Step 4: Simplify right side
    92,986.11x = 6,486,505,957.67
  5. Step 5: Solve for x
    x = 6,486,505,957.67/92,986.11
  6. Step 6: Final answer
    x = 69,757.79

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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.