Home / 67,976.10-102,000.60-28,537.20

Finding the Fourth Proportional to 67,976.10, 102,000.60 and 28,537.20

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Solution

The fourth proportional to 67,976.10, 102,000.60 and 28,537.20 is: 42,821.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,976.10 : 102,000.60 = 28,537.20 : x
  2. Step 2: Convert to fraction form
    67,976.10/102,000.60 = 28,537.20/x
  3. Step 3: Cross multiply
    67,976.10x = 102,000.60 × 28,537.20
  4. Step 4: Simplify right side
    67,976.10x = 2,910,811,522.32
  5. Step 5: Solve for x
    x = 2,910,811,522.32/67,976.10
  6. Step 6: Final answer
    x = 42,821.10

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1.5x scale

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.