Home / 81,157.16-111,818.66-60,653.36

Finding the Fourth Proportional to 81,157.16, 111,818.66 and 60,653.36

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Solution

The fourth proportional to 81,157.16, 111,818.66 and 60,653.36 is: 83,568.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,157.16 : 111,818.66 = 60,653.36 : x
  2. Step 2: Convert to fraction form
    81,157.16/111,818.66 = 60,653.36/x
  3. Step 3: Cross multiply
    81,157.16x = 111,818.66 × 60,653.36
  4. Step 4: Simplify right side
    81,157.16x = 6,782,177,439.70
  5. Step 5: Solve for x
    x = 6,782,177,439.70/81,157.16
  6. Step 6: Final answer
    x = 83,568.44

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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.