Home / 66,871.34-100,291.09-26,890.42

Finding the Fourth Proportional to 66,871.34, 100,291.09 and 26,890.42

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Solution

The fourth proportional to 66,871.34, 100,291.09 and 26,890.42 is: 40,329.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,871.34 : 100,291.09 = 26,890.42 : x
  2. Step 2: Convert to fraction form
    66,871.34/100,291.09 = 26,890.42/x
  3. Step 3: Cross multiply
    66,871.34x = 100,291.09 × 26,890.42
  4. Step 4: Simplify right side
    66,871.34x = 2,696,869,214.40
  5. Step 5: Solve for x
    x = 2,696,869,214.40/66,871.34
  6. Step 6: Final answer
    x = 40,329.23

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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.