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Finding the Fourth Proportional to 43,533.64, 65,300.47 and 28,739.09

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Solution

The fourth proportional to 43,533.64, 65,300.47 and 28,739.09 is: 43,108.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,533.64 : 65,300.47 = 28,739.09 : x
  2. Step 2: Convert to fraction form
    43,533.64/65,300.47 = 28,739.09/x
  3. Step 3: Cross multiply
    43,533.64x = 65,300.47 × 28,739.09
  4. Step 4: Simplify right side
    43,533.64x = 1,876,675,940.68
  5. Step 5: Solve for x
    x = 1,876,675,940.68/43,533.64
  6. Step 6: Final answer
    x = 43,108.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.