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Finding the Fourth Proportional to 71,353.10, 106,914.45 and 45,010.70

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Solution

The fourth proportional to 71,353.10, 106,914.45 and 45,010.70 is: 67,443.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,353.10 : 106,914.45 = 45,010.70 : x
  2. Step 2: Convert to fraction form
    71,353.10/106,914.45 = 45,010.70/x
  3. Step 3: Cross multiply
    71,353.10x = 106,914.45 × 45,010.70
  4. Step 4: Simplify right side
    71,353.10x = 4,812,294,234.62
  5. Step 5: Solve for x
    x = 4,812,294,234.62/71,353.10
  6. Step 6: Final answer
    x = 67,443.38

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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.