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Finding the Fourth Proportional to 86,418, 119,208.48 and 50,601.12

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Solution

The fourth proportional to 86,418, 119,208.48 and 50,601.12 is: 69,801.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,418 : 119,208.48 = 50,601.12 : x
  2. Step 2: Convert to fraction form
    86,418/119,208.48 = 50,601.12/x
  3. Step 3: Cross multiply
    86,418x = 119,208.48 × 50,601.12
  4. Step 4: Simplify right side
    86,418x = 6,032,082,601.50
  5. Step 5: Solve for x
    x = 6,032,082,601.50/86,418
  6. Step 6: Final answer
    x = 69,801.23

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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.