Home / 65,843.04-90,783.60-45,716.64

Finding the Fourth Proportional to 65,843.04, 90,783.60 and 45,716.64

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Solution

The fourth proportional to 65,843.04, 90,783.60 and 45,716.64 is: 63,033.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,843.04 : 90,783.60 = 45,716.64 : x
  2. Step 2: Convert to fraction form
    65,843.04/90,783.60 = 45,716.64/x
  3. Step 3: Cross multiply
    65,843.04x = 90,783.60 × 45,716.64
  4. Step 4: Simplify right side
    65,843.04x = 4,150,321,159.10
  5. Step 5: Solve for x
    x = 4,150,321,159.10/65,843.04
  6. Step 6: Final answer
    x = 63,033.56

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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.