Home / 81,423.20-122,192.51-37,055.65

Finding the Fourth Proportional to 81,423.20, 122,192.51 and 37,055.65

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Solution

The fourth proportional to 81,423.20, 122,192.51 and 37,055.65 is: 55,609.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,423.20 : 122,192.51 = 37,055.65 : x
  2. Step 2: Convert to fraction form
    81,423.20/122,192.51 = 37,055.65/x
  3. Step 3: Cross multiply
    81,423.20x = 122,192.51 × 37,055.65
  4. Step 4: Simplify right side
    81,423.20x = 4,527,922,392.42
  5. Step 5: Solve for x
    x = 4,527,922,392.42/81,423.20
  6. Step 6: Final answer
    x = 55,609.74

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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.