Home / 81,165.07-112,150.88-62,463.79

Finding the Fourth Proportional to 81,165.07, 112,150.88 and 62,463.79

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Solution

The fourth proportional to 81,165.07, 112,150.88 and 62,463.79 is: 86,310.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,165.07 : 112,150.88 = 62,463.79 : x
  2. Step 2: Convert to fraction form
    81,165.07/112,150.88 = 62,463.79/x
  3. Step 3: Cross multiply
    81,165.07x = 112,150.88 × 62,463.79
  4. Step 4: Simplify right side
    81,165.07x = 7,005,369,016.64
  5. Step 5: Solve for x
    x = 7,005,369,016.64/81,165.07
  6. Step 6: Final answer
    x = 86,310.15

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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.