Home / 81,499.14-112,469.10-47,531.07

Finding the Fourth Proportional to 81,499.14, 112,469.10 and 47,531.07

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Solution

The fourth proportional to 81,499.14, 112,469.10 and 47,531.07 is: 65,593.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,499.14 : 112,469.10 = 47,531.07 : x
  2. Step 2: Convert to fraction form
    81,499.14/112,469.10 = 47,531.07/x
  3. Step 3: Cross multiply
    81,499.14x = 112,469.10 × 47,531.07
  4. Step 4: Simplify right side
    81,499.14x = 5,345,776,664.94
  5. Step 5: Solve for x
    x = 5,345,776,664.94/81,499.14
  6. Step 6: Final answer
    x = 65,593.04

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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.