Home / 85,738.11-118,376.34-53,521.79

Finding the Fourth Proportional to 85,738.11, 118,376.34 and 53,521.79

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Solution

The fourth proportional to 85,738.11, 118,376.34 and 53,521.79 is: 73,896.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,738.11 : 118,376.34 = 53,521.79 : x
  2. Step 2: Convert to fraction form
    85,738.11/118,376.34 = 53,521.79/x
  3. Step 3: Cross multiply
    85,738.11x = 118,376.34 × 53,521.79
  4. Step 4: Simplify right side
    85,738.11x = 6,335,713,018.57
  5. Step 5: Solve for x
    x = 6,335,713,018.57/85,738.11
  6. Step 6: Final answer
    x = 73,896.11

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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.