Home / 81,286.98-112,175.06-45,476.88

Finding the Fourth Proportional to 81,286.98, 112,175.06 and 45,476.88

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Solution

The fourth proportional to 81,286.98, 112,175.06 and 45,476.88 is: 62,757.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,286.98 : 112,175.06 = 45,476.88 : x
  2. Step 2: Convert to fraction form
    81,286.98/112,175.06 = 45,476.88/x
  3. Step 3: Cross multiply
    81,286.98x = 112,175.06 × 45,476.88
  4. Step 4: Simplify right side
    81,286.98x = 5,101,371,515.23
  5. Step 5: Solve for x
    x = 5,101,371,515.23/81,286.98
  6. Step 6: Final answer
    x = 62,757.55

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1.5x scale

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.