Home / 81,508.74-112,502.07-49,695.18

Finding the Fourth Proportional to 81,508.74, 112,502.07 and 49,695.18

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Solution

The fourth proportional to 81,508.74, 112,502.07 and 49,695.18 is: 68,591.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,508.74 : 112,502.07 = 49,695.18 : x
  2. Step 2: Convert to fraction form
    81,508.74/112,502.07 = 49,695.18/x
  3. Step 3: Cross multiply
    81,508.74x = 112,502.07 × 49,695.18
  4. Step 4: Simplify right side
    81,508.74x = 5,590,810,619.02
  5. Step 5: Solve for x
    x = 5,590,810,619.02/81,508.74
  6. Step 6: Final answer
    x = 68,591.55

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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.