Home / 76,719.56-105,872.94-43,186.28

Finding the Fourth Proportional to 76,719.56, 105,872.94 and 43,186.28

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Solution

The fourth proportional to 76,719.56, 105,872.94 and 43,186.28 is: 59,597.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,719.56 : 105,872.94 = 43,186.28 : x
  2. Step 2: Convert to fraction form
    76,719.56/105,872.94 = 43,186.28/x
  3. Step 3: Cross multiply
    76,719.56x = 105,872.94 × 43,186.28
  4. Step 4: Simplify right side
    76,719.56x = 4,572,258,431.26
  5. Step 5: Solve for x
    x = 4,572,258,431.26/76,719.56
  6. Step 6: Final answer
    x = 59,597.04

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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.