Home / 112,912.57-169,368.92-28,679.05

Finding the Fourth Proportional to 112,912.57, 169,368.92 and 28,679.05

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Solution

The fourth proportional to 112,912.57, 169,368.92 and 28,679.05 is: 43,018.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,912.57 : 169,368.92 = 28,679.05 : x
  2. Step 2: Convert to fraction form
    112,912.57/169,368.92 = 28,679.05/x
  3. Step 3: Cross multiply
    112,912.57x = 169,368.92 × 28,679.05
  4. Step 4: Simplify right side
    112,912.57x = 4,857,339,725.13
  5. Step 5: Solve for x
    x = 4,857,339,725.13/112,912.57
  6. Step 6: Final answer
    x = 43,018.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.