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Finding the Fourth Proportional to 64,322.34, 88,808.14 and 40,160.09

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Solution

The fourth proportional to 64,322.34, 88,808.14 and 40,160.09 is: 55,447.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,322.34 : 88,808.14 = 40,160.09 : x
  2. Step 2: Convert to fraction form
    64,322.34/88,808.14 = 40,160.09/x
  3. Step 3: Cross multiply
    64,322.34x = 88,808.14 × 40,160.09
  4. Step 4: Simplify right side
    64,322.34x = 3,566,542,667.81
  5. Step 5: Solve for x
    x = 3,566,542,667.81/64,322.34
  6. Step 6: Final answer
    x = 55,447.97

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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.