Home / 64,471.28-88,965.90-35,788.68

Finding the Fourth Proportional to 64,471.28, 88,965.90 and 35,788.68

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Solution

The fourth proportional to 64,471.28, 88,965.90 and 35,788.68 is: 49,385.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,471.28 : 88,965.90 = 35,788.68 : x
  2. Step 2: Convert to fraction form
    64,471.28/88,965.90 = 35,788.68/x
  3. Step 3: Cross multiply
    64,471.28x = 88,965.90 × 35,788.68
  4. Step 4: Simplify right side
    64,471.28x = 3,183,972,126.01
  5. Step 5: Solve for x
    x = 3,183,972,126.01/64,471.28
  6. Step 6: Final answer
    x = 49,385.90

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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.