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Finding the Fourth Proportional to 70,023.87, 105,035.64 and 30,016.92

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Solution

The fourth proportional to 70,023.87, 105,035.64 and 30,016.92 is: 45,025.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,023.87 : 105,035.64 = 30,016.92 : x
  2. Step 2: Convert to fraction form
    70,023.87/105,035.64 = 30,016.92/x
  3. Step 3: Cross multiply
    70,023.87x = 105,035.64 × 30,016.92
  4. Step 4: Simplify right side
    70,023.87x = 3,152,846,403.03
  5. Step 5: Solve for x
    x = 3,152,846,403.03/70,023.87
  6. Step 6: Final answer
    x = 45,025.31

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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.