Home / 68,234.90-102,352.35-47,130.35

Finding the Fourth Proportional to 68,234.90, 102,352.35 and 47,130.35

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Solution

The fourth proportional to 68,234.90, 102,352.35 and 47,130.35 is: 70,695.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,234.90 : 102,352.35 = 47,130.35 : x
  2. Step 2: Convert to fraction form
    68,234.90/102,352.35 = 47,130.35/x
  3. Step 3: Cross multiply
    68,234.90x = 102,352.35 × 47,130.35
  4. Step 4: Simplify right side
    68,234.90x = 4,823,902,078.82
  5. Step 5: Solve for x
    x = 4,823,902,078.82/68,234.90
  6. Step 6: Final answer
    x = 70,695.53

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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.