Home / 85,378.56-117,817.62-47,655.24

Finding the Fourth Proportional to 85,378.56, 117,817.62 and 47,655.24

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Solution

The fourth proportional to 85,378.56, 117,817.62 and 47,655.24 is: 65,761.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,378.56 : 117,817.62 = 47,655.24 : x
  2. Step 2: Convert to fraction form
    85,378.56/117,817.62 = 47,655.24/x
  3. Step 3: Cross multiply
    85,378.56x = 117,817.62 × 47,655.24
  4. Step 4: Simplify right side
    85,378.56x = 5,614,626,957.33
  5. Step 5: Solve for x
    x = 5,614,626,957.33/85,378.56
  6. Step 6: Final answer
    x = 65,761.56

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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.