Home / 76,785.56-105,950.03-42,793.19

Finding the Fourth Proportional to 76,785.56, 105,950.03 and 42,793.19

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Solution

The fourth proportional to 76,785.56, 105,950.03 and 42,793.19 is: 59,046.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,785.56 : 105,950.03 = 42,793.19 : x
  2. Step 2: Convert to fraction form
    76,785.56/105,950.03 = 42,793.19/x
  3. Step 3: Cross multiply
    76,785.56x = 105,950.03 × 42,793.19
  4. Step 4: Simplify right side
    76,785.56x = 4,533,939,020.58
  5. Step 5: Solve for x
    x = 4,533,939,020.58/76,785.56
  6. Step 6: Final answer
    x = 59,046.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.