Home / 82,388.50-123,582.67-71,262.11

Finding the Fourth Proportional to 82,388.50, 123,582.67 and 71,262.11

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Solution

The fourth proportional to 82,388.50, 123,582.67 and 71,262.11 is: 106,893.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,388.50 : 123,582.67 = 71,262.11 : x
  2. Step 2: Convert to fraction form
    82,388.50/123,582.67 = 71,262.11/x
  3. Step 3: Cross multiply
    82,388.50x = 123,582.67 × 71,262.11
  4. Step 4: Simplify right side
    82,388.50x = 8,806,761,823.63
  5. Step 5: Solve for x
    x = 8,806,761,823.63/82,388.50
  6. Step 6: Final answer
    x = 106,893.10

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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.