Home / 61,840.12-85,372.44-48,382.78

Finding the Fourth Proportional to 61,840.12, 85,372.44 and 48,382.78

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Solution

The fourth proportional to 61,840.12, 85,372.44 and 48,382.78 is: 66,794.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,840.12 : 85,372.44 = 48,382.78 : x
  2. Step 2: Convert to fraction form
    61,840.12/85,372.44 = 48,382.78/x
  3. Step 3: Cross multiply
    61,840.12x = 85,372.44 × 48,382.78
  4. Step 4: Simplify right side
    61,840.12x = 4,130,555,982.58
  5. Step 5: Solve for x
    x = 4,130,555,982.58/61,840.12
  6. Step 6: Final answer
    x = 66,794.11

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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.