Home / 70,579.24-105,730.46-40,934.80

Finding the Fourth Proportional to 70,579.24, 105,730.46 and 40,934.80

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Solution

The fourth proportional to 70,579.24, 105,730.46 and 40,934.80 is: 61,321.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,579.24 : 105,730.46 = 40,934.80 : x
  2. Step 2: Convert to fraction form
    70,579.24/105,730.46 = 40,934.80/x
  3. Step 3: Cross multiply
    70,579.24x = 105,730.46 × 40,934.80
  4. Step 4: Simplify right side
    70,579.24x = 4,328,055,234.01
  5. Step 5: Solve for x
    x = 4,328,055,234.01/70,579.24
  6. Step 6: Final answer
    x = 61,321.93

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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.