Home / 64,716.30-89,283.68-40,175.60

Finding the Fourth Proportional to 64,716.30, 89,283.68 and 40,175.60

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Solution

The fourth proportional to 64,716.30, 89,283.68 and 40,175.60 is: 55,426.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,716.30 : 89,283.68 = 40,175.60 : x
  2. Step 2: Convert to fraction form
    64,716.30/89,283.68 = 40,175.60/x
  3. Step 3: Cross multiply
    64,716.30x = 89,283.68 × 40,175.60
  4. Step 4: Simplify right side
    64,716.30x = 3,587,025,414.21
  5. Step 5: Solve for x
    x = 3,587,025,414.21/64,716.30
  6. Step 6: Final answer
    x = 55,426.92

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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.