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Finding the Fourth Proportional to 75,765.77, 104,601.56 and 67,359

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Solution

The fourth proportional to 75,765.77, 104,601.56 and 67,359 is: 92,995.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,765.77 : 104,601.56 = 67,359 : x
  2. Step 2: Convert to fraction form
    75,765.77/104,601.56 = 67,359/x
  3. Step 3: Cross multiply
    75,765.77x = 104,601.56 × 67,359
  4. Step 4: Simplify right side
    75,765.77x = 7,045,856,143.25
  5. Step 5: Solve for x
    x = 7,045,856,143.25/75,765.77
  6. Step 6: Final answer
    x = 92,995.25

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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.