Home / 64,899.75-89,571.38-39,763.83

Finding the Fourth Proportional to 64,899.75, 89,571.38 and 39,763.83

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Solution

The fourth proportional to 64,899.75, 89,571.38 and 39,763.83 is: 54,880.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,899.75 : 89,571.38 = 39,763.83 : x
  2. Step 2: Convert to fraction form
    64,899.75/89,571.38 = 39,763.83/x
  3. Step 3: Cross multiply
    64,899.75x = 89,571.38 × 39,763.83
  4. Step 4: Simplify right side
    64,899.75x = 3,561,700,928.37
  5. Step 5: Solve for x
    x = 3,561,700,928.37/64,899.75
  6. Step 6: Final answer
    x = 54,880.04

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1.5x scale

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.