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Finding the Fourth Proportional to 85,366.52, 127,986.35 and 40,950.98

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Solution

The fourth proportional to 85,366.52, 127,986.35 and 40,950.98 is: 61,396.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,366.52 : 127,986.35 = 40,950.98 : x
  2. Step 2: Convert to fraction form
    85,366.52/127,986.35 = 40,950.98/x
  3. Step 3: Cross multiply
    85,366.52x = 127,986.35 × 40,950.98
  4. Step 4: Simplify right side
    85,366.52x = 5,241,166,459.12
  5. Step 5: Solve for x
    x = 5,241,166,459.12/85,366.52
  6. Step 6: Final answer
    x = 61,396.04

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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.