Home / 42,871.26-64,308.60-11,706.42

Finding the Fourth Proportional to 42,871.26, 64,308.60 and 11,706.42

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Solution

The fourth proportional to 42,871.26, 64,308.60 and 11,706.42 is: 17,560.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,871.26 : 64,308.60 = 11,706.42 : x
  2. Step 2: Convert to fraction form
    42,871.26/64,308.60 = 11,706.42/x
  3. Step 3: Cross multiply
    42,871.26x = 64,308.60 × 11,706.42
  4. Step 4: Simplify right side
    42,871.26x = 752,823,481.21
  5. Step 5: Solve for x
    x = 752,823,481.21/42,871.26
  6. Step 6: Final answer
    x = 17,560.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.