Home / 89,724.76-122,923.37-86,361.64

Finding the Fourth Proportional to 89,724.76, 122,923.37 and 86,361.64

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Solution

The fourth proportional to 89,724.76, 122,923.37 and 86,361.64 is: 118,315.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,724.76 : 122,923.37 = 86,361.64 : x
  2. Step 2: Convert to fraction form
    89,724.76/122,923.37 = 86,361.64/x
  3. Step 3: Cross multiply
    89,724.76x = 122,923.37 × 86,361.64
  4. Step 4: Simplify right side
    89,724.76x = 10,615,863,827.53
  5. Step 5: Solve for x
    x = 10,615,863,827.53/89,724.76
  6. Step 6: Final answer
    x = 118,315.88

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.