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Finding the Fourth Proportional to 75,183.42, 112,739.81 and 43,602.45

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Solution

The fourth proportional to 75,183.42, 112,739.81 and 43,602.45 is: 65,383.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,183.42 : 112,739.81 = 43,602.45 : x
  2. Step 2: Convert to fraction form
    75,183.42/112,739.81 = 43,602.45/x
  3. Step 3: Cross multiply
    75,183.42x = 112,739.81 × 43,602.45
  4. Step 4: Simplify right side
    75,183.42x = 4,915,731,710.52
  5. Step 5: Solve for x
    x = 4,915,731,710.52/75,183.42
  6. Step 6: Final answer
    x = 65,383.19

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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.