Home / 67,722.28-93,462.42-39,429.88

Finding the Fourth Proportional to 67,722.28, 93,462.42 and 39,429.88

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Solution

The fourth proportional to 67,722.28, 93,462.42 and 39,429.88 is: 54,416.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,722.28 : 93,462.42 = 39,429.88 : x
  2. Step 2: Convert to fraction form
    67,722.28/93,462.42 = 39,429.88/x
  3. Step 3: Cross multiply
    67,722.28x = 93,462.42 × 39,429.88
  4. Step 4: Simplify right side
    67,722.28x = 3,685,212,005.11
  5. Step 5: Solve for x
    x = 3,685,212,005.11/67,722.28
  6. Step 6: Final answer
    x = 54,416.54

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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.