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Finding the Fourth Proportional to 70,250.58, 105,258.87 and 49,430.34

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Solution

The fourth proportional to 70,250.58, 105,258.87 and 49,430.34 is: 74,063.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,250.58 : 105,258.87 = 49,430.34 : x
  2. Step 2: Convert to fraction form
    70,250.58/105,258.87 = 49,430.34/x
  3. Step 3: Cross multiply
    70,250.58x = 105,258.87 × 49,430.34
  4. Step 4: Simplify right side
    70,250.58x = 5,202,981,732.12
  5. Step 5: Solve for x
    x = 5,202,981,732.12/70,250.58
  6. Step 6: Final answer
    x = 74,063.19

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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.