Home / 64,738.21-89,337.36-36,057.78

Finding the Fourth Proportional to 64,738.21, 89,337.36 and 36,057.78

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Solution

The fourth proportional to 64,738.21, 89,337.36 and 36,057.78 is: 49,758.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,738.21 : 89,337.36 = 36,057.78 : x
  2. Step 2: Convert to fraction form
    64,738.21/89,337.36 = 36,057.78/x
  3. Step 3: Cross multiply
    64,738.21x = 89,337.36 × 36,057.78
  4. Step 4: Simplify right side
    64,738.21x = 3,221,306,954.90
  5. Step 5: Solve for x
    x = 3,221,306,954.90/64,738.21
  6. Step 6: Final answer
    x = 49,758.97

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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.