Home / 66,278.62-91,498.38-51,137.26

Finding the Fourth Proportional to 66,278.62, 91,498.38 and 51,137.26

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Solution

The fourth proportional to 66,278.62, 91,498.38 and 51,137.26 is: 70,595.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,278.62 : 91,498.38 = 51,137.26 : x
  2. Step 2: Convert to fraction form
    66,278.62/91,498.38 = 51,137.26/x
  3. Step 3: Cross multiply
    66,278.62x = 91,498.38 × 51,137.26
  4. Step 4: Simplify right side
    66,278.62x = 4,678,976,447.64
  5. Step 5: Solve for x
    x = 4,678,976,447.64/66,278.62
  6. Step 6: Final answer
    x = 70,595.56

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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.