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Finding the Fourth Proportional to 85,065, 127,554.60 and 49,537.80

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Solution

The fourth proportional to 85,065, 127,554.60 and 49,537.80 is: 74,281.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,065 : 127,554.60 = 49,537.80 : x
  2. Step 2: Convert to fraction form
    85,065/127,554.60 = 49,537.80/x
  3. Step 3: Cross multiply
    85,065x = 127,554.60 × 49,537.80
  4. Step 4: Simplify right side
    85,065x = 6,318,774,263.88
  5. Step 5: Solve for x
    x = 6,318,774,263.88/85,065
  6. Step 6: Final answer
    x = 74,281.72

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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.