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Finding the Fourth Proportional to 79,114.94, 109,210.11 and 51,901.37

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Solution

The fourth proportional to 79,114.94, 109,210.11 and 51,901.37 is: 71,644.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,114.94 : 109,210.11 = 51,901.37 : x
  2. Step 2: Convert to fraction form
    79,114.94/109,210.11 = 51,901.37/x
  3. Step 3: Cross multiply
    79,114.94x = 109,210.11 × 51,901.37
  4. Step 4: Simplify right side
    79,114.94x = 5,668,154,326.85
  5. Step 5: Solve for x
    x = 5,668,154,326.85/79,114.94
  6. Step 6: Final answer
    x = 71,644.55

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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.