Home / 81,977.49-123,026.18-52,467.57

Finding the Fourth Proportional to 81,977.49, 123,026.18 and 52,467.57

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Solution

The fourth proportional to 81,977.49, 123,026.18 and 52,467.57 is: 78,739.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,977.49 : 123,026.18 = 52,467.57 : x
  2. Step 2: Convert to fraction form
    81,977.49/123,026.18 = 52,467.57/x
  3. Step 3: Cross multiply
    81,977.49x = 123,026.18 × 52,467.57
  4. Step 4: Simplify right side
    81,977.49x = 6,454,884,448.64
  5. Step 5: Solve for x
    x = 6,454,884,448.64/81,977.49
  6. Step 6: Final answer
    x = 78,739.72

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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.