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Finding the Fourth Proportional to 81,674.58, 112,710.93 and 45,864.61

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Solution

The fourth proportional to 81,674.58, 112,710.93 and 45,864.61 is: 63,293.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,674.58 : 112,710.93 = 45,864.61 : x
  2. Step 2: Convert to fraction form
    81,674.58/112,710.93 = 45,864.61/x
  3. Step 3: Cross multiply
    81,674.58x = 112,710.93 × 45,864.61
  4. Step 4: Simplify right side
    81,674.58x = 5,169,443,027.42
  5. Step 5: Solve for x
    x = 5,169,443,027.42/81,674.58
  6. Step 6: Final answer
    x = 63,293.17

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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.