Home / 70,520.24-105,776.46-51,564.31

Finding the Fourth Proportional to 70,520.24, 105,776.46 and 51,564.31

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Solution

The fourth proportional to 70,520.24, 105,776.46 and 51,564.31 is: 77,343.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,520.24 : 105,776.46 = 51,564.31 : x
  2. Step 2: Convert to fraction form
    70,520.24/105,776.46 = 51,564.31/x
  3. Step 3: Cross multiply
    70,520.24x = 105,776.46 × 51,564.31
  4. Step 4: Simplify right side
    70,520.24x = 5,454,289,909.70
  5. Step 5: Solve for x
    x = 5,454,289,909.70/70,520.24
  6. Step 6: Final answer
    x = 77,343.61

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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.