Home / 48,938.65-73,390.11-20,861.58

Finding the Fourth Proportional to 48,938.65, 73,390.11 and 20,861.58

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Solution

The fourth proportional to 48,938.65, 73,390.11 and 20,861.58 is: 31,284.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,938.65 : 73,390.11 = 20,861.58 : x
  2. Step 2: Convert to fraction form
    48,938.65/73,390.11 = 20,861.58/x
  3. Step 3: Cross multiply
    48,938.65x = 73,390.11 × 20,861.58
  4. Step 4: Simplify right side
    48,938.65x = 1,531,033,650.97
  5. Step 5: Solve for x
    x = 1,531,033,650.97/48,938.65
  6. Step 6: Final answer
    x = 31,284.75

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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.