Home / 82,013.31-122,740.94-50,406.71

Finding the Fourth Proportional to 82,013.31, 122,740.94 and 50,406.71

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Solution

The fourth proportional to 82,013.31, 122,740.94 and 50,406.71 is: 75,438.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,013.31 : 122,740.94 = 50,406.71 : x
  2. Step 2: Convert to fraction form
    82,013.31/122,740.94 = 50,406.71/x
  3. Step 3: Cross multiply
    82,013.31x = 122,740.94 × 50,406.71
  4. Step 4: Simplify right side
    82,013.31x = 6,186,966,480.02
  5. Step 5: Solve for x
    x = 6,186,966,480.02/82,013.31
  6. Step 6: Final answer
    x = 75,438.57

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1.5x scale

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.