Home / 67,977.67-101,981.09-28,512.04

Finding the Fourth Proportional to 67,977.67, 101,981.09 and 28,512.04

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Solution

The fourth proportional to 67,977.67, 101,981.09 and 28,512.04 is: 42,774.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,977.67 : 101,981.09 = 28,512.04 : x
  2. Step 2: Convert to fraction form
    67,977.67/101,981.09 = 28,512.04/x
  3. Step 3: Cross multiply
    67,977.67x = 101,981.09 × 28,512.04
  4. Step 4: Simplify right side
    67,977.67x = 2,907,688,917.32
  5. Step 5: Solve for x
    x = 2,907,688,917.32/67,977.67
  6. Step 6: Final answer
    x = 42,774.18

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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.