Home / 76,039.20-104,940.90-42,055.65

Finding the Fourth Proportional to 76,039.20, 104,940.90 and 42,055.65

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Solution

The fourth proportional to 76,039.20, 104,940.90 and 42,055.65 is: 58,040.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,039.20 : 104,940.90 = 42,055.65 : x
  2. Step 2: Convert to fraction form
    76,039.20/104,940.90 = 42,055.65/x
  3. Step 3: Cross multiply
    76,039.20x = 104,940.90 × 42,055.65
  4. Step 4: Simplify right side
    76,039.20x = 4,413,357,761.09
  5. Step 5: Solve for x
    x = 4,413,357,761.09/76,039.20
  6. Step 6: Final answer
    x = 58,040.56

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1.5x scale

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.