Home / 64,835.20-89,383.80-40,949.92

Finding the Fourth Proportional to 64,835.20, 89,383.80 and 40,949.92

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Solution

The fourth proportional to 64,835.20, 89,383.80 and 40,949.92 is: 56,454.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,835.20 : 89,383.80 = 40,949.92 : x
  2. Step 2: Convert to fraction form
    64,835.20/89,383.80 = 40,949.92/x
  3. Step 3: Cross multiply
    64,835.20x = 89,383.80 × 40,949.92
  4. Step 4: Simplify right side
    64,835.20x = 3,660,259,459.30
  5. Step 5: Solve for x
    x = 3,660,259,459.30/64,835.20
  6. Step 6: Final answer
    x = 56,454.82

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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.