Home / 81,718.13-112,764.96-45,914.11

Finding the Fourth Proportional to 81,718.13, 112,764.96 and 45,914.11

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Solution

The fourth proportional to 81,718.13, 112,764.96 and 45,914.11 is: 63,358.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,718.13 : 112,764.96 = 45,914.11 : x
  2. Step 2: Convert to fraction form
    81,718.13/112,764.96 = 45,914.11/x
  3. Step 3: Cross multiply
    81,718.13x = 112,764.96 × 45,914.11
  4. Step 4: Simplify right side
    81,718.13x = 5,177,502,495.67
  5. Step 5: Solve for x
    x = 5,177,502,495.67/81,718.13
  6. Step 6: Final answer
    x = 63,358.06

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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.