Home / 71,408.08-107,278.56-61,443.76

Finding the Fourth Proportional to 71,408.08, 107,278.56 and 61,443.76

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Solution

The fourth proportional to 71,408.08, 107,278.56 and 61,443.76 is: 92,308.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,408.08 : 107,278.56 = 61,443.76 : x
  2. Step 2: Convert to fraction form
    71,408.08/107,278.56 = 61,443.76/x
  3. Step 3: Cross multiply
    71,408.08x = 107,278.56 × 61,443.76
  4. Step 4: Simplify right side
    71,408.08x = 6,591,598,093.79
  5. Step 5: Solve for x
    x = 6,591,598,093.79/71,408.08
  6. Step 6: Final answer
    x = 92,308.85

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1.5x scale

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.