Home / 74,764.75-111,670.49-67,638.10

Finding the Fourth Proportional to 74,764.75, 111,670.49 and 67,638.10

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Solution

The fourth proportional to 74,764.75, 111,670.49 and 67,638.10 is: 101,025.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,764.75 : 111,670.49 = 67,638.10 : x
  2. Step 2: Convert to fraction form
    74,764.75/111,670.49 = 67,638.10/x
  3. Step 3: Cross multiply
    74,764.75x = 111,670.49 × 67,638.10
  4. Step 4: Simplify right side
    74,764.75x = 7,553,179,152.30
  5. Step 5: Solve for x
    x = 7,553,179,152.30/74,764.75
  6. Step 6: Final answer
    x = 101,025.94

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.