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Finding the Fourth Proportional to 70,600.50, 97,450.56 and 45,450

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Solution

The fourth proportional to 70,600.50, 97,450.56 and 45,450 is: 62,735.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,600.50 : 97,450.56 = 45,450 : x
  2. Step 2: Convert to fraction form
    70,600.50/97,450.56 = 45,450/x
  3. Step 3: Cross multiply
    70,600.50x = 97,450.56 × 45,450
  4. Step 4: Simplify right side
    70,600.50x = 4,429,127,952
  5. Step 5: Solve for x
    x = 4,429,127,952/70,600.50
  6. Step 6: Final answer
    x = 62,735.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.