Home / 85,380.19-117,813.79-47,656.03

Finding the Fourth Proportional to 85,380.19, 117,813.79 and 47,656.03

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Solution

The fourth proportional to 85,380.19, 117,813.79 and 47,656.03 is: 65,759.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,380.19 : 117,813.79 = 47,656.03 : x
  2. Step 2: Convert to fraction form
    85,380.19/117,813.79 = 47,656.03/x
  3. Step 3: Cross multiply
    85,380.19x = 117,813.79 × 47,656.03
  4. Step 4: Simplify right side
    85,380.19x = 5,614,537,510.65
  5. Step 5: Solve for x
    x = 5,614,537,510.65/85,380.19
  6. Step 6: Final answer
    x = 65,759.25

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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.