Home / 84,908.52-117,170.55-47,185.20

Finding the Fourth Proportional to 84,908.52, 117,170.55 and 47,185.20

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Solution

The fourth proportional to 84,908.52, 117,170.55 and 47,185.20 is: 65,113.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,908.52 : 117,170.55 = 47,185.20 : x
  2. Step 2: Convert to fraction form
    84,908.52/117,170.55 = 47,185.20/x
  3. Step 3: Cross multiply
    84,908.52x = 117,170.55 × 47,185.20
  4. Step 4: Simplify right side
    84,908.52x = 5,528,715,835.86
  5. Step 5: Solve for x
    x = 5,528,715,835.86/84,908.52
  6. Step 6: Final answer
    x = 65,113.79

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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.