Home / 81,490.06-112,456.08-49,659.04

Finding the Fourth Proportional to 81,490.06, 112,456.08 and 49,659.04

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Solution

The fourth proportional to 81,490.06, 112,456.08 and 49,659.04 is: 68,529.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,490.06 : 112,456.08 = 49,659.04 : x
  2. Step 2: Convert to fraction form
    81,490.06/112,456.08 = 49,659.04/x
  3. Step 3: Cross multiply
    81,490.06x = 112,456.08 × 49,659.04
  4. Step 4: Simplify right side
    81,490.06x = 5,584,460,974.96
  5. Step 5: Solve for x
    x = 5,584,460,974.96/81,490.06
  6. Step 6: Final answer
    x = 68,529.35

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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.