Home / 75,871.08-104,668.20-45,638.64

Finding the Fourth Proportional to 75,871.08, 104,668.20 and 45,638.64

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Solution

The fourth proportional to 75,871.08, 104,668.20 and 45,638.64 is: 62,960.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,871.08 : 104,668.20 = 45,638.64 : x
  2. Step 2: Convert to fraction form
    75,871.08/104,668.20 = 45,638.64/x
  3. Step 3: Cross multiply
    75,871.08x = 104,668.20 × 45,638.64
  4. Step 4: Simplify right side
    75,871.08x = 4,776,914,299.25
  5. Step 5: Solve for x
    x = 4,776,914,299.25/75,871.08
  6. Step 6: Final answer
    x = 62,960.94

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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.