Home / 77,790.06-107,124.42-67,576.46

Finding the Fourth Proportional to 77,790.06, 107,124.42 and 67,576.46

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Solution

The fourth proportional to 77,790.06, 107,124.42 and 67,576.46 is: 93,059.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,790.06 : 107,124.42 = 67,576.46 : x
  2. Step 2: Convert to fraction form
    77,790.06/107,124.42 = 67,576.46/x
  3. Step 3: Cross multiply
    77,790.06x = 107,124.42 × 67,576.46
  4. Step 4: Simplify right side
    77,790.06x = 7,239,089,083.15
  5. Step 5: Solve for x
    x = 7,239,089,083.15/77,790.06
  6. Step 6: Final answer
    x = 93,059.31

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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.