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Finding the Fourth Proportional to 61,640.04, 85,064.94 and 36,489.54

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Solution

The fourth proportional to 61,640.04, 85,064.94 and 36,489.54 is: 50,356.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,640.04 : 85,064.94 = 36,489.54 : x
  2. Step 2: Convert to fraction form
    61,640.04/85,064.94 = 36,489.54/x
  3. Step 3: Cross multiply
    61,640.04x = 85,064.94 × 36,489.54
  4. Step 4: Simplify right side
    61,640.04x = 3,103,980,530.73
  5. Step 5: Solve for x
    x = 3,103,980,530.73/61,640.04
  6. Step 6: Final answer
    x = 50,356.56

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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.