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Finding the Fourth Proportional to 68,001.80, 102,002.70 and 47,006.60

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Solution

The fourth proportional to 68,001.80, 102,002.70 and 47,006.60 is: 70,509.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,001.80 : 102,002.70 = 47,006.60 : x
  2. Step 2: Convert to fraction form
    68,001.80/102,002.70 = 47,006.60/x
  3. Step 3: Cross multiply
    68,001.80x = 102,002.70 × 47,006.60
  4. Step 4: Simplify right side
    68,001.80x = 4,794,800,117.82
  5. Step 5: Solve for x
    x = 4,794,800,117.82/68,001.80
  6. Step 6: Final answer
    x = 70,509.90

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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.