Home / 85,074.30-117,505.69-62,380.53

Finding the Fourth Proportional to 85,074.30, 117,505.69 and 62,380.53

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Solution

The fourth proportional to 85,074.30, 117,505.69 and 62,380.53 is: 86,160.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,074.30 : 117,505.69 = 62,380.53 : x
  2. Step 2: Convert to fraction form
    85,074.30/117,505.69 = 62,380.53/x
  3. Step 3: Cross multiply
    85,074.30x = 117,505.69 × 62,380.53
  4. Step 4: Simplify right side
    85,074.30x = 7,330,067,064.26
  5. Step 5: Solve for x
    x = 7,330,067,064.26/85,074.30
  6. Step 6: Final answer
    x = 86,160.77

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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.