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Finding the Fourth Proportional to 84,558.57, 126,833.41 and 28,399.82

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Solution

The fourth proportional to 84,558.57, 126,833.41 and 28,399.82 is: 42,598.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,558.57 : 126,833.41 = 28,399.82 : x
  2. Step 2: Convert to fraction form
    84,558.57/126,833.41 = 28,399.82/x
  3. Step 3: Cross multiply
    84,558.57x = 126,833.41 × 28,399.82
  4. Step 4: Simplify right side
    84,558.57x = 3,602,045,415.32
  5. Step 5: Solve for x
    x = 3,602,045,415.32/84,558.57
  6. Step 6: Final answer
    x = 42,598.23

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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.