Home / 81,767.85-112,840.65-49,502.04

Finding the Fourth Proportional to 81,767.85, 112,840.65 and 49,502.04

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Solution

The fourth proportional to 81,767.85, 112,840.65 and 49,502.04 is: 68,313.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,767.85 : 112,840.65 = 49,502.04 : x
  2. Step 2: Convert to fraction form
    81,767.85/112,840.65 = 49,502.04/x
  3. Step 3: Cross multiply
    81,767.85x = 112,840.65 × 49,502.04
  4. Step 4: Simplify right side
    81,767.85x = 5,585,842,369.93
  5. Step 5: Solve for x
    x = 5,585,842,369.93/81,767.85
  6. Step 6: Final answer
    x = 68,313.43

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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.