Home / 84,912.96-117,179.04-47,186.40

Finding the Fourth Proportional to 84,912.96, 117,179.04 and 47,186.40

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Solution

The fourth proportional to 84,912.96, 117,179.04 and 47,186.40 is: 65,116.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,912.96 : 117,179.04 = 47,186.40 : x
  2. Step 2: Convert to fraction form
    84,912.96/117,179.04 = 47,186.40/x
  3. Step 3: Cross multiply
    84,912.96x = 117,179.04 × 47,186.40
  4. Step 4: Simplify right side
    84,912.96x = 5,529,257,053.06
  5. Step 5: Solve for x
    x = 5,529,257,053.06/84,912.96
  6. Step 6: Final answer
    x = 65,116.76

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1.5x scale

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.