Home / 70,234.06-105,361.58-25,857.40

Finding the Fourth Proportional to 70,234.06, 105,361.58 and 25,857.40

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Solution

The fourth proportional to 70,234.06, 105,361.58 and 25,857.40 is: 38,789.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,234.06 : 105,361.58 = 25,857.40 : x
  2. Step 2: Convert to fraction form
    70,234.06/105,361.58 = 25,857.40/x
  3. Step 3: Cross multiply
    70,234.06x = 105,361.58 × 25,857.40
  4. Step 4: Simplify right side
    70,234.06x = 2,724,376,518.69
  5. Step 5: Solve for x
    x = 2,724,376,518.69/70,234.06
  6. Step 6: Final answer
    x = 38,789.96

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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.