Home / 82,677.64-123,973.26-43,138.12

Finding the Fourth Proportional to 82,677.64, 123,973.26 and 43,138.12

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Solution

The fourth proportional to 82,677.64, 123,973.26 and 43,138.12 is: 64,684.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,677.64 : 123,973.26 = 43,138.12 : x
  2. Step 2: Convert to fraction form
    82,677.64/123,973.26 = 43,138.12/x
  3. Step 3: Cross multiply
    82,677.64x = 123,973.26 × 43,138.12
  4. Step 4: Simplify right side
    82,677.64x = 5,347,973,366.67
  5. Step 5: Solve for x
    x = 5,347,973,366.67/82,677.64
  6. Step 6: Final answer
    x = 64,684.64

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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.