Home / 70,209.52-105,145.96-51,183.28

Finding the Fourth Proportional to 70,209.52, 105,145.96 and 51,183.28

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Solution

The fourth proportional to 70,209.52, 105,145.96 and 51,183.28 is: 76,652.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,209.52 : 105,145.96 = 51,183.28 : x
  2. Step 2: Convert to fraction form
    70,209.52/105,145.96 = 51,183.28/x
  3. Step 3: Cross multiply
    70,209.52x = 105,145.96 × 51,183.28
  4. Step 4: Simplify right side
    70,209.52x = 5,381,715,111.55
  5. Step 5: Solve for x
    x = 5,381,715,111.55/70,209.52
  6. Step 6: Final answer
    x = 76,652.21

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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.