Home / 81,643.14-112,663.91-45,832.43

Finding the Fourth Proportional to 81,643.14, 112,663.91 and 45,832.43

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Solution

The fourth proportional to 81,643.14, 112,663.91 and 45,832.43 is: 63,246.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,643.14 : 112,663.91 = 45,832.43 : x
  2. Step 2: Convert to fraction form
    81,643.14/112,663.91 = 45,832.43/x
  3. Step 3: Cross multiply
    81,643.14x = 112,663.91 × 45,832.43
  4. Step 4: Simplify right side
    81,643.14x = 5,163,661,164.84
  5. Step 5: Solve for x
    x = 5,163,661,164.84/81,643.14
  6. Step 6: Final answer
    x = 63,246.72

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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.