Home / 76,977.10-115,408.05-41,956.30

Finding the Fourth Proportional to 76,977.10, 115,408.05 and 41,956.30

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Solution

The fourth proportional to 76,977.10, 115,408.05 and 41,956.30 is: 62,903.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,977.10 : 115,408.05 = 41,956.30 : x
  2. Step 2: Convert to fraction form
    76,977.10/115,408.05 = 41,956.30/x
  3. Step 3: Cross multiply
    76,977.10x = 115,408.05 × 41,956.30
  4. Step 4: Simplify right side
    76,977.10x = 4,842,094,768.22
  5. Step 5: Solve for x
    x = 4,842,094,768.22/76,977.10
  6. Step 6: Final answer
    x = 62,903.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.