Home / 76,928.64-106,170.24-43,392

Finding the Fourth Proportional to 76,928.64, 106,170.24 and 43,392

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Solution

The fourth proportional to 76,928.64, 106,170.24 and 43,392 is: 59,885.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,928.64 : 106,170.24 = 43,392 : x
  2. Step 2: Convert to fraction form
    76,928.64/106,170.24 = 43,392/x
  3. Step 3: Cross multiply
    76,928.64x = 106,170.24 × 43,392
  4. Step 4: Simplify right side
    76,928.64x = 4,606,939,054.08
  5. Step 5: Solve for x
    x = 4,606,939,054.08/76,928.64
  6. Step 6: Final answer
    x = 59,885.88

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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.