Home / 67,821.12-101,671.72-25,671.92

Finding the Fourth Proportional to 67,821.12, 101,671.72 and 25,671.92

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Solution

The fourth proportional to 67,821.12, 101,671.72 and 25,671.92 is: 38,485.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,821.12 : 101,671.72 = 25,671.92 : x
  2. Step 2: Convert to fraction form
    67,821.12/101,671.72 = 25,671.92/x
  3. Step 3: Cross multiply
    67,821.12x = 101,671.72 × 25,671.92
  4. Step 4: Simplify right side
    67,821.12x = 2,610,108,262.10
  5. Step 5: Solve for x
    x = 2,610,108,262.10/67,821.12
  6. Step 6: Final answer
    x = 38,485.18

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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.