Home / 81,376.82-112,304.16-45,564.69

Finding the Fourth Proportional to 81,376.82, 112,304.16 and 45,564.69

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Solution

The fourth proportional to 81,376.82, 112,304.16 and 45,564.69 is: 62,881.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,376.82 : 112,304.16 = 45,564.69 : x
  2. Step 2: Convert to fraction form
    81,376.82/112,304.16 = 45,564.69/x
  3. Step 3: Cross multiply
    81,376.82x = 112,304.16 × 45,564.69
  4. Step 4: Simplify right side
    81,376.82x = 5,117,104,236.11
  5. Step 5: Solve for x
    x = 5,117,104,236.11/81,376.82
  6. Step 6: Final answer
    x = 62,881.59

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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.