Home / 43,123.92-64,676.16-11,961.60

Finding the Fourth Proportional to 43,123.92, 64,676.16 and 11,961.60

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Solution

The fourth proportional to 43,123.92, 64,676.16 and 11,961.60 is: 17,939.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,123.92 : 64,676.16 = 11,961.60 : x
  2. Step 2: Convert to fraction form
    43,123.92/64,676.16 = 11,961.60/x
  3. Step 3: Cross multiply
    43,123.92x = 64,676.16 × 11,961.60
  4. Step 4: Simplify right side
    43,123.92x = 773,630,355.46
  5. Step 5: Solve for x
    x = 773,630,355.46/43,123.92
  6. Step 6: Final answer
    x = 17,939.70

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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.