Home / 70,284.24-105,440.40-25,911.18

Finding the Fourth Proportional to 70,284.24, 105,440.40 and 25,911.18

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Solution

The fourth proportional to 70,284.24, 105,440.40 and 25,911.18 is: 38,871.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,284.24 : 105,440.40 = 25,911.18 : x
  2. Step 2: Convert to fraction form
    70,284.24/105,440.40 = 25,911.18/x
  3. Step 3: Cross multiply
    70,284.24x = 105,440.40 × 25,911.18
  4. Step 4: Simplify right side
    70,284.24x = 2,732,085,183.67
  5. Step 5: Solve for x
    x = 2,732,085,183.67/70,284.24
  6. Step 6: Final answer
    x = 38,871.95

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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.