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Finding the Fourth Proportional to 64,405, 88,862.08 and 37,174.42

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Solution

The fourth proportional to 64,405, 88,862.08 and 37,174.42 is: 51,290.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,405 : 88,862.08 = 37,174.42 : x
  2. Step 2: Convert to fraction form
    64,405/88,862.08 = 37,174.42/x
  3. Step 3: Cross multiply
    64,405x = 88,862.08 × 37,174.42
  4. Step 4: Simplify right side
    64,405x = 3,303,396,283.99
  5. Step 5: Solve for x
    x = 3,303,396,283.99/64,405
  6. Step 6: Final answer
    x = 51,290.99

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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.